OUR VISION
The world's finest educators supporting science, technology, engineering, and math (STEM) learning for pre-kindergarten to post-graduate students using real-world applications from satellites and satellite data.

OUR MISSION
To enhance the education environment to excite students about science, technology, engineering, and math through space-based technology -- satellites and satellite data.

Hurricane Milton seen from GOES-16, October 2024.
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We the people are the rightful masters of Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution.

Abraham Lincoln

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What can schools do to defend democracy? Should they preach a specific political doctrine? I believe they should not. If they are able to teach young people to have a critical mind and a socially oriented attitude, they will have done all that is necessary.

Albert Einstein

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TABLE OF CONTENTS

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STEVE'S SPACE
Steve Mills

More Lessons
from the Sky

In this Issue banner

June 23, 2025

In this issue, the top story is the announcement of the annual meeting of members in the Satellite Educators Association, Inc.

The PRESIDENT'S CORNER Invites all Active SEA members to participate in SEA's Annual Meeting; Ron Gird's EARTH SYSTEM SCIENCE shares NOAA's predictions for an above-normal Atlantic hurricane season; JOHN'S JOURNEY explores techniques for engaging and preparing the next generation of scientific and technological leaders; STEVE MILLS offers his next chapter, "The Space Mission."

A LOOK BACK reviews the 1-1/4 ton mechanical computer used by the U.S. Coast & Geodetic Survey from 1910 to 1965 and highlights ten extraordinary women who broke barriers at NOAA from 1845 to 2018.

The SATELLITES section brings us the PACE satellite looking at harmful algal blooms in the ocean and NISAR, a joint NASA and India Space Research Organisation satellite imaging the Earth in two microwave bandwidths.

ACCESS includes a new ready-to-use dataset of land motion across North America; an update on atmospheric carbon dioxide; and how NOAA satellites are predicting tomorrow's floods today with new flood inundation mapping.

ANALYZE offers an update on global temperature change; how NASA sees forests from space using LIDAR; and the river waves seen from the NASA-French satellite SWOT.

APPLY highlights the unexpected results of coastal water quality from EMIT, an instrument on the space station; how AI is applied to MODIS image analysis; and GOES-19 tracking a significant Saharan dust storm blowing across the Atlantic.

IN THE NEWS reports the engineering of memory metal and NOAA decisions to defer upkeep on JPSS satellites in the face of a growing backlog of unsigned contracts.

FOR TEACHERS lists Teachers Institute on Wireless Technology offered by ARRL; how to "cook up a storm" in your kitchen; exploring our dynamic Sun; and designing drone-based solutions for climate education.

MORE LESSONS FROM THE SKY presents the latest update (June 2024) of the World Wide Weather lesson module for grades 3-5.

Enjoy!
--Editor


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SEA Annual Meeting of Members is Called

The annual meeting of Satellite Educators Association members is scheduled this summer. The Executive Committee is finalizing the date and setting the agenda. The online meeting will be offered via ZOOM. The exact date and time of the meeting and log in instructions will be emailed well before the meeting date.

The annual meeting agenda will include the standard reports on the state of the Association. Of special interest will be a vote on potential revisions to the Association's By-Laws. A volunteer committee approved by the SEA President tackled this job at the end of the 2024 meeting.

While lapsed and non-members are welcome to visit the annual meeting, only Active Members (those with dues paid) have voice and vote. To renew your membership, please visit Member Services at https://SatEd.org. To join as a new member, please visit Join Us at https://SatEd.org. In both cases, just follow the on-screen instructions to update or create your profile and pay $20 annual dues. More details about membership can be found in the Terms and Conditions page at https://SatEd.org/fineprint.html.

Membership in the Satellites Educators Association supports Association activities including this quarterly SEA Newsletter, the Web site SatEd.org with its curated Lesson Plan Library and Using Satellites In Education, and (for the last two years) the SmallSat Education Conference.

Don't miss this opportunity to let your voice be heard.

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Simon Cracknell, SEA President

You Are Invited to Participate in the Annual Satellite Educators Association Meeting

By Simon Cracknell, President, Satellite Educators Association



The annual meeting of the Satellites Educators Association, Inc. (SEA) is tentatively scheduled for the last week of July 2025. The exact date and time will be emailed soon. All active members of SEA (those with dues paid through July 31, 2025) have voice and vote at the meeting.

I have been working with the other members of the Executive Committee to establish the agenda for this meeting. Among other important topics will be discussions and votes on the future direction of SEA and the revised By-Laws of the corporation. I urge all interested persons to update their membership to Active status (if necessary) and join us for this important meeting.

Please see the Association News article above for more information.

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Ron Gird

NOAA Predicts Above-Normal 2025 Atlantic Hurricane Season

By Ron Gird, Meteorologist and former Satellite/Spaceflight and Outreach Program Manager for the National Weather Service

From NOAA News & Features at https://www.noaa.gov/news-release/noaa-predicts-above-normal-2025-atlantic-hurricane-season
May 22, 2025

Above-average Atlantic Ocean temperatures set the stage

Forecasters within NOAA’s National Weather Service predict above-normal hurricane activity in the Atlantic basin this year.

Image of Hurricane Milton from NOAA's GOES-16 satellite on Oct. 8, 2024.
Image of Hurricane Milton from NOAA's GOES-16 satellite on Oct. 8, 2024.
Credit: NOAA

NOAA’s outlook for the 2025 Atlantic hurricane season, which goes from June 1 to November 30, predicts a 30% chance of a near-normal season, a 60% chance of an above-normal season, and a 10% chance of a below-normal season.

The agency is forecasting a range of 13 to 19 total named storms (winds of 39 mph or higher). Of those, 6-10 are forecast to become hurricanes (winds of 74 mph or higher), including 3-5 major hurricanes (category 3, 4 or 5; with winds of 111 mph or higher). NOAA has a 70% confidence in these ranges.

Read more HERE...

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John Moore

Investigating the Earth from Space: The Intersection of Ground Observations and Earth Observing Satellites

By John D. Moore, Executive Director, Institute for Earth Observations at Palmyra Cove, New Jersey





Perhaps not since the launch of Sputnik on October 4, 1957, have satellites played such a prominent role in both research and public awareness. Today, the demand for satellite applications in commercial and military sectors is growing rapidly. The Satellite Educators Association (SEA), with its long history of promoting satellite literacy and education since 1989, has consistently contributed to solutions in this evolving space. At a time when national security and economic competitiveness depend on technological leadership, SEA’s mission has never been more critical. Our guiding question remains: How do we engage and prepare the next generation?

As satellite missions and orbital instrumentation continue to rapidly evolve, so too do the opportunities for learners of all ages to engage in Earth system science from two complementary perspectives: from the ground-up and from space-down. This dual approach is embodied in what is called the SEES ModelSpace to Earth: Earth and Space — which merges satellite imagery and data with local, ground-based observations to enhance scientific understanding through verification and application.

This model empowers students, teachers, and citizen scientists to take an active role in Earth observations, not only interpreting satellite data but also contributing to its validation. In the process, participants acquire real-world skills in data collection, scientific analysis, and spatial reasoning-critical elements of geoscience and aerospace education.

The UCAR Ozone Garden Project: Ground Truthing with the TEMPO Satellite

One notable SEES-aligned initiative underway at the Institute for Earth Observations (IEO) is our participation in the National Ozone Garden Network, led by the University Corporation for Atmospheric Research (UCAR). This hands-on experience follows the Acquire–Analyze–Apply or the A3 Model of learning — data is acquired through direct observation, analyzed using satellite data tools, and applied to real-world questions about air quality and environmental health.

Through this project, we are cultivating an Ozone Bioindicator Garden that uses living plants to detect and document ground-level ozone damage. Certain plant species, such as milkweed and snap beans, act as sensitive bioindicators. When exposed to elevated ozone levels, these species develop characteristic foliar injuries that can be observed, recorded, and compared over time. Our ground-based observations are compared and analyzed with sensitive air quality instrumentation and are then matched with atmospheric ozone measurements from NASA’s TEMPO mission.

TEMPO (Tropospheric Emissions: Monitoring of Pollution) is a geostationary ultraviolet and visible spectrometer designed to monitor air pollution across North America. Scanning hourly, TEMPO provides unprecedented temporal and spatial resolution of ozone and related pollutants in the troposphere. It is a collaborative mission led by the Smithsonian Astrophysical Observatory, with key partners including NASA Langley Research Center and Ball Aerospace.

By combining ground-based ozone observations with satellite data from TEMPO, students and teachers participate in an authentic Earth science investigation. It’s inspiring to see that national air quality can be monitored daily — from space.

Expanding the Model: GLOBE Observer and Other Ground-Satellite Partnerships

The SEES Model is reflected in a growing number of educational citizen science efforts, including several projects hosted on NASA’s GLOBE Observer app. These efforts support space-ground collaborations across multiple environmental systems:

  • Tree Height and ICESat2: Ground-based measurements help validate lidar data collected by NASA’s ICESat-2, enhancing forest structure models and carbon estimations and creating more accurate elevation models globally.
  • Mosquito Mapper and GPM: Participants collect mosquito habitat data to support rainfall modeling and public health forecasting in conjunction with the Global Precipitation Measurement mission.
  • Land Cover and LandSat: Local observations of vegetation and land use improve interpretation of LandSat-derived imagery.
  • Clouds with GOES, Terra, and Aqua: Observer-submitted cloud data are used to verify satellite imagery and improve weather and climate models. Once observable data and images are submitted, NASA will verify observations and return a satellite image taken at the time of the overpass of your region.

These initiatives represent scalable, curriculum-connected activities that integrate classroom learning with satellite data platforms, making them ideal for formal and informal education settings alike.

CTE and the Space Age Classroom: A 45-Year Perspective

In 1981, I was hired to develop and teach a new course called Environmental Technologies at a vocational-technical school. At the time, "technology" in the classroom looked very different - no internet, no classroom computers, and very limited access to real-time data.

Over time, the course evolved into Geoscience and Remote Sensing, and eventually into Geospatial Technologies through a partnership with a local community college. By 1985, my students were applying real-world skills to investigate the Earth from space. A Perkins Grant helped us purchase a GOES satellite receiver, allowing students to access and analyze satellite data — cutting-edge work for its time.

Around that same period, the first Satellites & Education Conference took place at West Chester University, marking the beginning of a wider movement to integrate satellite science into K–12 education.

Today, the possibilities are far greater. Students in Career Technical Education (CTE) programs now build and fly their own SmallSats - some even reaching near - space via high-altitude balloons. What was once futuristic is now hands-on and accessible in many schools across the country.

Why It Matters

As CTE reclaims its place in the national education conversation, it’s essential to support programs that blend career skills with scientific discovery. Satellite and space-based education offers students direct engagement with the tools and technologies shaping our future.

Call to Action

To prepare tomorrow’s workforce, we must continue investing in CTE programs that empower students to explore, build, and launch - not only their own spacecraft, but their own futures.

The SEES Model is more than a teaching tool. It is a pathway to Career and Technical Education, preparing students with skills that are in high demand across geospatial technology, aerospace, and environmental science sectors. By engaging with real-time data from platforms like TEMPO, ICESat-2, and LANDSAT, students gain experience in:

  • Geospatial data collection and analysis
  • Scientific coding and modeling (e.g., Python, GIS tools)
  • Environmental monitoring and fieldwork protocols
  • Operation and care of laboratory and field equipment
  • Interpreting visual and spectral satellite imagery
  • Collaborating on research and data reporting

The A3 Educational Model emphasizes three key stages in CTE-STEM education:

  • Acquire: Students gain foundational knowledge in satellite systems, coding, and engineering principles.
  • Analyze: Learners engage in hands-on experimentation with CubeSats and PocketQubes, interpreting telemetry data and refining mission parameters.
  • Apply: Participants design, build, and test their own satellites, integrating their skills into real-world.

These are not abstract skills — they are directly aligned with career paths in atmospheric science, remote sensing, computer science and use of artificial intelligence (AI), data analytics, environmental technology, and Earth system research. Through the SEES Model, students experience what it means to be part of the scientific process, while also building a foundation for post secondary pathways in STEM, CTE, and beyond. The A3 Model provides hands-on activity that develops proficiencies for the future. It is all about Workforce Readiness.

In this way, the combined A3 and SEES Model not only enriches Earth System education, but also fulfills a critical need: to inspire, prepare, and equip the next generation of satellite scientists, data analysts, and geosciences scientists.

Impact on Reaching the Next Generation

Just in the past few months, the Institute for Earth Observations has introduced more than 1,000 middle school students to satellite science through immersive experiences in our Outdoor Laboratory - 250 acres of conservation land serving as a real-world Earth Observatory. Students explore environmental systems, analyze data, and discover the possibilities of careers in geoscience and technology.

Let’s be clear. This kind of science is not routinely taught in most U.S. public schools. That’s why this work is not just exciting, it’s essential.

My journey continues in the coming months. SEA members are invited to join me at these events:

  • GLOBE’s 30th Anniversary Virtual Conference (www.globe.gov)
    July 14–15, 2025 | Free registration
    Theme: 30 Years of GLOBE: Understanding the Past, Present, and Future
    (Fun fact: GLOBE’s first teacher workshop was held at West Chester University - birthplace of SEA - thanks in part to SEA’s leadership in forming a new "satellite education community.")
  • 39th Annual Small Satellite Conference (https://smallsat.org)
    August 10–13, 2025 | Salt Lake City, UT
  • 2025 SmallSat Education Conference (www.smallsateducation.org)
    October 25, 2025| Kennedy Space Center, FLA unique gathering focused on precollege achievements and educational opportunities with SmallSats.

...and remember..."you can teach anything with satellites."

Stay safe - stay well

For now, I'm John ... and this is my journey.


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Steve Mills

The Space Mission

By Steve Mills, Retired Systems Engineering Scientist; owner and Chief Engineer of Polymath Geo



The original meaning of the word "mission" was religious, meaning the sending out of Catholic priests and brothers to a specified foreign land for the purpose of spreading the religion. By the twentieth century the word was generalized to mean sending out people to a place for a specific purpose. In the 1930’s the United States military began using "mission" to mean the "dispatch of an aircraft on a military operation," and when the space age began in the 1950’s this meaning was extended to spacecraft. A space mission is defined very generally as a journey by a vehicle in space to accomplish specific objectives.

The first real space mission was Sputnik I, launched by the USSR in 1957. Its primary mission was very simple -- to be Earth’s first artificial satellite. Its only device onboard was a radio that transmitted a repeating "beep beep" signal. The signal could be picked up by amateur radio operators throughout most of the world and was intended to prove to the world that the mission was a success. This radio signal also gave Sputnik I a secondary scientific mission. It was broadcast simultaneously at two different frequencies, 20 and 40 MHz, and this could be used to estimate electron density of the ionosphere.

The Mission objectives should be specific. For example, "This satellite will measure the weather," is not specific enough to be a mission objective because it does not say where, when, how often or what specific aspects of the weather are to be measured. Here is an example of the more specific mission of the GOES-18 weather satellite operated by NOAA:

GOES-18 provides continuous weather imagery and data from a geostationary orbit centered at 136.9° west latitude. Its planned operation is for 15 years starting 3 January 2023. It includes two meteorological instruments: the Advanced Baseline Imager (ABI) with 16 channels from visible light to longwave infrared that is updated every 15 minutes; and the Geostationary Lightning Mapper (GLM), that maps the location and time of lightning flashes. It also contains several smaller instruments to collect solar radiation and space weather data.

A full description of the GOES-18 mission would be much longer than this, giving more details on the purposes of ABI and GLM.

A space mission requires a great amount of planning. For comparison, consider how your family would plan a trip to attend a wedding celebration 500 miles away. First you would need to decide what vehicle to use to get there. Do you take a train, a plane or do you drive a car? If you decide to drive, you may have to decide which car to use or whether to rent a car. You may want to have an auto mechanic check the car for any problems. You would also need to choose what things to bring and the luggage to keep it in. You would need to plan a route and understand how long it will take. This is all mission planning. Now you could decide to change the route or use a different vehicle, then the mission plan will change, but the actual mission, that is, to attend the wedding, does not change.

Parts of the Mission

At this point it would be useful to define several terms used to discuss a space mission.

  • Launch vehicle -- This is the rocket system used to lift a payload to its orbit, or in the case of a space probe, beyond Earth orbit. Expendable launch vehicles are designed to be used only once, and in the early years of the space age, these were the only option. A relatively recent development in the launch business has been the successful design of reusable vehicles by SpaceX and Blue Origin. Though some launchers are closely associated with specific missions (for example Saturn V is always associated with the Apollo missions), do not confuse the launch vehicle with the mission. A launch vehicle may carry several different payloads, each with a different mission. Also, reusable launchers may serve different missions for each launch. Figure 1 compares some different launch vehicles, past, present and future.
Comparison of launch vehicles with height in meters and payload capacity.
Figure 1 - Comparison of launch vehicles with height in meters and payload capacity in metric tons.
Credit: Wikipedia Commons
  • Distributed launch -- This is a system to launch a payload that is too large for a single launch. The International Space Station (ISS) is the best example of a distributed launch.
  • Payload -- This is the system that accomplishes the mission. If it includes a human crew, then the humans are part of the payload. During launch, the payload is almost always at the tip of the launch vehicle and surrounded by a payload fairing to make the vehicle more aerodynamic as it passes through the atmosphere.
  • Spacecraft -- is, simply put, a vehicle designed primarily to move through outer space. For most missions the spacecraft and the payload are one and the same. The word "payload" is usually used when considering the weight, size and shape of the spacecraft with respect to the launch vehicle. The word "spacecraft" is used when considering the whole system, and its guidance, communications, power supply and instruments. The spacecraft bus is the platform where the instruments, the power supply, the communications system, and others systems are attached. For very small spacecraft, such as a CubeSat, the bus, the instruments, the power supply and communications are all integrated into one small device.
  • Satellite — This is another word sometimes used interchangeably with payload or spacecraft, and generally means any object in space orbiting another larger object. However, usually it refers to an artificial satellite, that is, an object put into Earth’s orbit by humans. Technically, this definition of satellite also includes all space junk and debris. Space is becoming increasingly crowded, and collisions at greater than 10000 km/hr are becoming more likely. A single collision can create thousands of smaller pieces, which can cause more collisions. Eventually this could lead to a chain reaction known as the Kessler Syndrome.
An axonometric view displays various Earth orbits, illustrating space debris and active satellites.
Figure 2 - An axonometric view displays various Earth orbits, illustrating space debris and active satellites.
Credit: Pablo Carlos Budassi, Wikipedia Commons

For more on the Kessler Syndrome, please consult the following:
Kessler, David; Anz-Meador, Phillip (March 2001). "Critical Number of Spacecraft in Low Earth Orbit: Using Fragmentation Data to Evaluate the Stability of the Orbital Debris Environment." Proceedings of the Third European Conference on Space Debris. Darmstadt, Germany.

  • Mission Instrument — This is a measurement device, camera, imager or other device used to accomplish the mission, but does not include spacecraft navigation, power supply or communications. A spacecraft may carry more than one instrument, but usually the purposes of the instruments are related.
  • Communications System — This is the system that transmits information from the spacecraft to the ground (downlink) and transmits commands from the ground to the spacecraft (uplink). The downlink information includes status for all systems on the spacecraft and data from the spacecraft instruments. For crewed missions it also handles two-way audio and video communications between the crew and the ground team.
  • Power Supply — This produces the electric power for the spacecraft and distributes power to the spacecraft instruments. Usually, it converts solar radiance to electric power using solar panels. Some missions that are far from the sun convert nuclear thermal energy to electric energy using a Radioisotope Thermoelectric Generator (RTG).
  • Mission Control — This is the center on the ground where people accomplish the mission. It is the other end of the link with the spacecraft’s communication system. Often it is a large room where specialists for various parts of the mission are gathered together to coordinate details of the mission, for example, the Mission Control Center at JPL shown in Figure 3.
Mission Control Center at JPL for the NASA's Mars 2020 Mission. The mission control team is shown cheering the success of the Rover vehicle touchdown on Mars on February 18, 2021.
Figure 3 - Mission Control Center at JPL for the NASA's Mars 2020 Mission. The mission control team is shown cheering the success of the Rover vehicle touchdown on Mars on February 18, 2021.
Credit: NASA
  • Constellation — A group of satellites that work together for a common mission. In my last column on guidance and control I wrote about the GPS satellite constellation supports its mission.
  • Life Support System (LSS) — This is the equipment on crewed (or manned) missions that allows survival in an environment or situation that would not otherwise support that life. It provides air, water and food, as well as controls the temperature and pressure necessary to sustain life. It may also monitor the health of the crew. An LSS is also needed for missions where an animal is onboard, for example, Laika, the first animal to orbit the Earth on Sputnik 2. (USSR's Sputnik 2, the second artificial satellite, had a passenger, a dog named Laika. The mission aimed to gather data on the effects of space travel on living organisms. The spacecraft did have a life support system but it only kept Laika alive for a few hours. Laika likely suffered before dying, and, at the time, advocates against animal cruelty criticized USSR for that.)
  • Secondary mission — This is an objective in addition to the primary objective (or mission) of the spacecraft. Often secondary missions are opportunistic. Many spacecraft include instruments to measure space weather, which are high-speed charged particles coming from the sun's atmosphere. These instruments are small, lightweight and do not use much power, so they make ideal space "hitchhikers".
  • Navigation and Guidance System — This is the instruments and electronics that determine the spacecraft’s position, velocity and acceleration in three dimensions and its orientation (or attitude). In my previous column I wrote in detail about the guidance and control of a spacecraft.

Types of Missions

There is no standard way to group and organize space missions. In the aerospace business missions tend to be distinguished by the customer or government agency that is paying for the mission. So, they may classify contracts as commercial, US Space Force, NSA, NASA, NOAA, ESA or some other government agency. This list is not exhaustive, since other nations such as Japan and South Korea have their own space agencies.

Another way to define type of mission is to consider its objectives, regardless of who is paying for it. Here is one possible classification scheme:

Uncrewed Missions:

  • Space Probe is a spacecraft that leaves Earth to explore further into outer space. It may go to the Moon, another planet, an asteroid or any other celestial body. Some space probes do a flyby of one or more planets or other objects. Others may touchdown or crash on a planet or celestial object. Their mission is to collect scientific data and transmit it back to Earth.
  • Space Telescope is a telescope that observes celestial objects. Space telescopes have the advantage over telescopes on the ground in that they can observe without the attenuation or image degradation from the atmosphere. Actually, telescopes on the ground do well imaging visible light because the atmosphere allows most of the light to pass through. Therefore, space telescopes are designed to image xrays, ultraviolet and infrared. Therefore, space telescopes are classified by the range of wavelengths where they are sensitive. NASA’s Chandra telescope is sensitive to Xray for wavelengths less than 100 nm. The Hubble is sensitive to ultraviolet at 100 nm, the visible and infrared wavelengths up to 2500 nm. The James Webb Space Telescope (JWST) is designed to detect visible red light at 600 nm wavelength up to infrared radiance at wavelengths up to 27 microns. Most images from space telescopes that NASA publishes are not visible light. They are false-color images where invisible wavelengths are mapped to visible colors (see Figure 4).
False color image of galaxy cluster SMACS 0723 from JWST’s Near-Infrared Camera (NIRCam). The combined mass of this galaxy cluster acts as a gravitational lens, magnifying more distant galaxies, including some seen when the universe was less than a billion years old.
Figure 4 - False color image of galaxy cluster SMACS 0723 from JWST’s Near-Infrared Camera (NIRCam). The combined mass of this galaxy cluster acts as a gravitational lens, magnifying more distant galaxies, including some seen when the universe was less than a billion years old.
Source: NASA
  • Earth Observing (EO) — Most cameras and telescopes in space do not look outward toward distant galaxies but look back toward the Earth. These, including missions to produce data for meteorology, cartography and environmental monitoring. The most common type of earth observing missions collect images, analogous to aerial photographs. Like space telescopes, imaging instruments on an EO mission measure over a broad spectrum of wavelengths from ultraviolet to long wave infrared.
    • Reconnaissance (recon) — This a special type of EO mission where human activity in foreign nations is being observed and are sometimes called spy satellites. Tactical recon missions directly support ongoing military operations, whereas strategic recon supports policy making overall military strategy. For example, a satellite that monitors weapon tests to determine whether an adversary is upholding the terms of a treaty would be called strategic.
    • Weather — This a special type of EO mission to support weather forecasting. Weather forecasting models, of course, require data on the atmosphere, but what is less known is they also need to know the temperature of the oceans and other large bodies of water. The GOES-17 is primarily a weather mission. It is geostationary and remains fixed over a specific spot on the equator by having a orbital period of 23.934 hours, the exact period of the Earth’s rotation. (I will leave it to the reader to figure out why this is not exactly 24 hours. Hint: "sidereal") Because geostationary satellites cannot image the poles, there are also polar orbiters, such as the Joint Polar Satellite System (JPSS). These satellites can image the entire Earth twice a day, and each satellite can image the poles every 101 minutes (see Figure 5). For weather missions, timeliness is critical so that models can be updated. Most weather satellites have a secondary mission of producing climate and environmental data. This secondary mission is not time critical, so more care can be taken to carefully calibrate the data and integrate it with environmental models.
Composite image of the Earth’s southern hemisphere using data from the Suomi National Polar-orbiting Partnership (NPP) on April 9, 2015. It used data from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument to produce this colored image.
Figure 5 - Composite image of the Earth’s southern hemisphere using data from the Suomi National Polar-orbiting Partnership (NPP) on April 9, 2015. It used data from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument to produce this colored image.
Source: NASA
  • Communications — Satellites relay and amplify radio signals via a transponder, creating a communication channel between a source transmitter and a receiver at different locations on Earth. These are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit, so that the satellite dish on the ground can be aimed permanently at one spot in space. Others form constellations in low Earth orbit, and the satellite dish may have to follow the position and switch to another satellite often.
  • Military — As I wrote in a previous column, the first missions into space were military, that is, the testing of Intercontinental Ballistic Missiles (ICBM) in the 1940’s and 1950’s. In 1967 the United Nations Outer Space Treaty was intended to restrict the militarization of space. It does not prohibit recon satellites, but does ban weapons of mass destruction, including nuclear weapons. The treaty does not prohibit conventional weapons in orbit, and so some highly destructive missions, such as kinetic bombardment, are still allowable. Anti-satellite weapons (ASAT) are space weapons designed to incapacitate or destroy satellites. No ASAT system has yet been used in warfare, a few countries have successfully shot down their own satellites to test and demonstrate their capabilities. These tests are a major source of space debris.

Crewed Missions:

A Crewed (or Manned) Mission is any that includes a crew of one or more persons. In 2023 only 3% of space launches had a crew. Space is a very hostile environment for the human body, so crewed missions are dangerous, expensive, and therefore, rare. However, because these missions stimulate the human imagination, crewed missions received much more than 3% of the public’s attention and funding. Approximately half of NASA's annual budget is allocated to crewed missions.

  • Suborbital Missions — Suborbital flights were common early in the history of spaceflight because the USA and USSR were using launch vehicles designed for ICBMs, which are, suborbital flights by definition. The Mercury Program conducted 2 manned suborbital flights in 1961, but after achieving a successful manned orbit in 1962 it never again went back to suborbital crewed missions. Today, because suborbital spaceflight missions require much less powerful launch vehicles, and, therefore, are much less expensive, these are the most common for space tourism. These suborbital flights are, however, very short, lasting 10 to 12 minutes.
  • Orbital Missions — Orbital missions do require much more powerful launch vehicles, but once in orbit, the crew can remain for days or even months. Historically, during the Mercury, Gemini and Apollo programs crewed orbital missions were seen as a steppingstone to a Lunar mission. After Apollo ended, the objective was toward establishing space stations. Today, most crewed orbital missions are to ferry crews to and from the International Space Station (ISS). Some of the Space Shuttle missions were to support NASA space station programs, and others were to deliver uncrewed payloads into orbit. There were Shuttle missions that supported on-board experiments conducted by specialists on Spacelab, a habitable module in the Shuttle’s hold.
  • Space Station Missions — The mission of a space station is to provide a laboratory or platform to conduct any number of missions where some human intervention is required. An important part of the station’s mission is, therefore, to sustain human life. Over a period of 23 years 242 people from 19 countries have visited and stayed on the ISS. The ISS Life Support System has performed well; there has never been a critical health event. Since the end of the Apollo Program, most crewed space active involved space stations. After the USA achieved the first crewed moon landing, the USSR shifted the focus of their space program to space stations, and this program continued until 2001 with the end of the Mir Space Station Mission. The innovations developed during the USSR space station missions and later the Russian Federation missions eventually contributed to the success of the ISS. The ISS consists of two segments, the Russian Orbital Segment (ROS) and the US Orbital Segment (USOS).
  • Lunar or Planetary Missions — The Apollo program was arguably the most ambitious endeavor that humans have ever successfully accomplished. The program accomplished in nine years what the current US Moon program, Artemis, may be able to accomplish in ten. And it did it with computer technology that was thousands of times slower than what is now available. If sending a human crew to the Moon is so difficult, imagine how difficult it would be to send humans to the nearest planet, Mars. It would take over a year to travel from Earth to Mars. The bigger problem is the return to Earth. The escape velocity of Mars is almost twice that of the Moon, so a much more powerful launch vehicle must be transported and erected on Mars than was used for Apollo or Artemis.

Phases of a Space Mission

A space mission requires years of preparation before it is launched and involves hundreds or even thousands of individuals. For planning purposes NASA defines the phases of a mission as follows:

  1. Initiation & Planning:
    • Concept & Feasibility: This phase involves evaluating the feasibility of the mission and exploring different options.
    • Requirements Definition: Defining the specific goals and requirements for the mission.
    • Mission Planning: Developing a detailed plan for all aspects of the mission, including operations, schedules, and budgets.
  2. Development & Production:
    • System Design & Development: Creating and developing the necessary systems, hardware, and software for the mission.
    • Assembly, Integration, & Testing (AIT): Building, integrating, and thoroughly testing all components of the mission.
    • Manufacturing & Production: Building the mission's components and ensuring their quality.
  3. Execution & Operations:
    • Launch & Deployment: The mission is launched and deployed into its operational environment.
    • Early Orbit Phase: This critical phase involves initial orbit maneuvers and system checks.
    • Mission Operations: The mission is actively deployed and performs its intended scientific or operational tasks.
  4. Closure & Decommissioning:
    • Mission Completion: When the mission's goals have been achieved, or the mission is no longer viable.
    • Deorbiting or Disposal: This involves safely deorbiting or disposing of the spacecraft.
    • Project Closeout: Documentation and final reports are prepared to summarize the mission's results and lessons learned.

Note that one of the last items is deorbiting or disposal. As noted earlier, space junk and space debris are becoming a major problem. One solution is to establish graveyard orbits where decommissioned satellites can be moved to orbits where they cannot do much harm (see Figure 2).

For a more detailed look at space mission planning and implementation, please consult Dave Doody's online Basics of Space Flight at https://science.nasa.gov/learn/basics-of-space-flight/, especially Chapter 7: Mission Inception.

Next Time

In my next column, I will describe how communications, data and data processing are used in space programs. See you then!


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quotation #1 A Look Back banner

NOAA Rewind: Brass Brains

From NOAA News & Features
at https://www.noaa.gov/heritage/multimedia/video/noaa-rewind-brass-brains
June 5, 2023


NOAA’s Brass Brains, officially known as Tide Predicting Machine No. 2, is an early 20th century mechanical computer used to make tide predictions for the United States. This video highlights Brass Brains and how it worked.
Source: NOAA

The "NOAA Rewind" series highlights artifacts and stories from NOAA’s history in approximately one minute. Learn more about NOAA’s history at noaa.gov/heritage.

Transcript:

This is Brass Brains, the U.S. government's first computer design.

It's essentially a 2,500 pound mechanical computer made of pulleys, gears, and chains.

The U.S. Coast & Geodetic Survey used it from 1910 to 1965 to predict tides.

Brass Brains uses 37 factors related to the motions and positions of the Earth, moon, and sun.

Brass Brains did in one day what would take 125 mathematicians the same length of time.

After its invention, the number of shipwrecks was cut in half in two years’ time.

During WWI, WWII, and the Korean War, it was used to plan amphibious invasions and kept under lock and key to prevent sabotage.

Believe it or not, NOAA still has Brass Brains and it still works today!

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Gamechangers

From NOAA News & Features
at https://www.noaa.gov/heritage/multimedia/video/gamechangers
March 3, 2025


NOAA has many outstanding women who have been the first to accomplish big things at NOAA and our predecessor agencies. This video showcases 10 of them.
Source: NOAA

Learn more about NOAA’s history at noaa.gov/heritage.

Transcript:

10... 9... 8... 7... 6... 5... 4... 3... 2... 1

Gamechangers:
10 women who broke barriers at NOAA

Maria Mitchell
The first woman hired by the federal government in a professional capacity as an astronomer for the U.S. Coast Survey.
1845

Rachel Carson
The first woman to go out on a Bureau of Fisheries research vessel.
1949

Hazel Tatro
The U.S. Weather Bureau’s first female meteorologist-in-charge. She ran the Winston-Salem, North Carolina station.
1964

Sylvia Earle
Led the first all-female aquanaut research team.
1970

Pamela Chelgren
The first female officer in the NOAA Corps.
1972

Hilda Gohrband
The first female computer scientist at NOAA.
1973

Evelyn Fields
The first African American woman to join the NOAA Corps.
1973

Dr. Patricia M. Clay
The first female anthropologist at NOAA.
1992

Rebecca Waddington & Kristie Twining
The first all-female team to pilot a NOAA aircraft during a hurricane mission.
2018

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quotation #2 Satellites banner

An Ocean in Bloom

A film by Emma Watkins for NASA Explore
at https://plus.nasa.gov/video/an-ocean-in-bloom/
August 14, 2024

A frame from the Emma Watkins film "An Ocean in Bloom."
Click the image to play the video.
Source: NASA

From the far reaches of space, NASA scientists aim to expand their knowledge of how our ocean, atmosphere, and ecosystems interact with one another through the launch of the PACE satellite. By identifying and examining harmful algal blooms around the world, PACE will inform communities ranging from local fishermen to large corporations on what is occurring in their backyard and beyond. From sea to space, the PACE satellite will take Earth’s pulse in astounding ways for decades to come.

The original post in 4K video can be seen HERE.

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NISAR - NASA-ISRO SAR Mission

From NASA Jet Propulsion Laboratory
at https://nisar.jpl.nasa.gov/

Artist's conception of NASA ISRO SAR in orbit.
Source:https://nisar.jpl.nasa.gov/mission/quick-facts/

NISAR is the first satellite mission to collect radar data in two microwave bandwidth regions, called the L-band and the S-band, to measure changes of our planet’s surface, including movements as small as centimeter. This allows the mission to observe a wide range of Earth processes, from the flow rates of glaciers and ice sheets to the dynamics of earthquakes and volcanoes.

Find out everything you want to know about NISAR, its long list of data applications, and how you can be involved by visiting https://nisar.jpl.nasa.gov/ today.

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quotation #3 Access banner

NASA's Ready-to-Use Dataset Details Land Motion Across North America

From NASA Jet Propulsion Laboratory
at https://www.jpl.nasa.gov/news/nasas-ready-to-use-dataset-details-land-motion-across-north-america/
June 6, 2025

A new online portal by NASA and the Alaska Satellite Facility maps satellite radar measurements across North America, enabling users to track land movement since 2016 caused by earthquakes, landslides, volcanoes, and other phenomena.
A new online portal by NASA and the Alaska Satellite Facility maps satellite radar measurements across North America, enabling users to track land movement since 2016 caused by earthquakes, landslides, volcanoes, and other phenomena.
Credit: USGS

An online tool maps measurements and enables non-experts to understand earthquakes, subsidence, landslides, and other types of land motion.

NASA is collaborating with the Alaska Satellite Facility in Fairbanks to create a powerful web-based tool that will show the movement of land across North America down to less than an inch. The online portal and its underlying dataset unlock a trove of satellite radar measurements that can help anyone identify where and by how much the land beneath their feet may be moving — whether from earthquakes, volcanoes, landslides, or the extraction of underground natural resources such as groundwater.

Spearheaded by NASA’s Observational Products for End-Users from Remote Sensing Analysis (OPERA) project at the agency’s Jet Propulsion Laboratory in Southern California, the effort equips users with information that would otherwise take years of training to produce. The project builds on measurements from spaceborne synthetic aperture radars, or SARs, to generate high-resolution data on how Earth’s surface is moving.

Read more HERE...

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Climate Change: Atmospheric Carbon Dioxide

By Rebecca Lindsey & John Miller from Climate.gov
at https://www.climate.gov/news-features/understanding-climate/climate-change-atmospheric-carbon-dioxide
May 21, 2025

Graph showing modern record of atmospheric carbon dioxide.
The modern record of atmospheric carbon dioxide levels began with observations recorded at Mauna Loa Observatory in Hawaii. This graph shows the station's monthly average carbon dioxide measurements since 1958 in parts per million (ppm). The seasonal cycle of highs and lows (small peaks and valleys) is driven by Northern Hemisphere summer vegetation growth, which reduces atmospheric carbon dioxide, and winter decay, which increases it. The long-term trend of rising carbon dioxide levels is driven by human activities. At Mauna Loa, the highest monthly value each year occurs in May. In May 2024, carbon dioxide hit just under 427 ppm — a new record. NOAA Climate.gov image, based on Mauna Loa monthly mean data from NOAA Global Monitoring Lab.

Based on the annual analysis from NOAA’s Global Monitoring Lab, global average atmospheric carbon dioxide was 422.8 parts per million ("ppm," for short) in 2024, a new record high. The increase during 2024 was 3.75 ppm — the largest one-year increase on record. At Mauna Loa Observatory in Hawaii (graph above), where the modern carbon dioxide record began in 1958, the annual average carbon dioxide in 2024 was 424.61 ppm, also a new record.

The years with the largest annual carbon dioxide growth tend to be associated with the strongest El Niños — the warm phase of a natural climate pattern in the tropical Pacific — which lead to high temperatures over land and sea and an expansion of global drought area. In turn, these weather conditions typically lead to less plant growth, which reduces carbon dioxide uptake, as well as increased decomposition of carbon in soil and increased carbon dioxide emissions from forest fires. Together, these impacts cause atmospheric carbon dioxide levels to rise faster than normal.

Read more HERE...

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Seeing Tomorrow’s Floods Today: The Role of NOAA Satellites in Inundation Mapping

From NOAA National Environmental Satellite, Data, and Information Service
at https://www.nesdis.noaa.gov/news/seeing-tomorrows-floods-today-the-role-of-noaa-satellites-inundation-mapping
June 2, 2025

River flooding poses a serious threat to communities across the United States, endangering roughly 41 million Americans and putting an estimated $5.5 trillion in assets at risk. It occurs when heavy rainfall causes rivers, creeks or streams to overflow their banks, often affecting areas far beyond where the rain fell. Peak flooding can sometimes arrive days after a storm, making it difficult to anticipate the full impact. River floods can severely damage infrastructure, destroy crops, disrupt ecosystems, contaminate water supplies and displace entire neighborhoods. These widespread impacts highlight the critical need for accessible tools that can accurately predict where flooding is anticipated to occur, so communities can prepare and respond effectively.

n this example FIM Services map, blue shading marks the areas of a neighborhood in Campbell, Florida projected to experience river flooding over the next five days, including many houses and businesses.
n this example FIM Services map, blue shading marks the areas of a neighborhood in Campbell, Florida projected to experience river flooding over the next five days, including many houses and businesses.
Source NOAA
Download image

To meet this need, NOAA’s National Water Center has developed experimental Flood Inundation Mapping (FIM) Services to better depict where river flooding is happening and where it could spread. These interactive online maps display flood extent down to the street level, creating "flood footprints" of areas already underwater or at risk over the next five days. FIM maps are a vital support tool for emergency managers who require precise information to make time-sensitive decisions, such as issuing evacuation orders. Once fully rolled out in 2026, FIM maps will cover about 3.4 million river miles, greatly enhancing emergency preparedness and response efforts for floods nationwide.

Read more HERE...

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quotation #4 Analyze banner

Climate Change: Global Temperature

By Rebecca Lindsey, Luann Dahlman, Jessica Blunden, NOAA Cimate.gov
at https://www.climate.gov/news-features/understanding-climate/climate-change-global-temperature
April 10, 2025

Graph of global average surface temperature 1880-2020.
Yearly surface temperature from 1880–2024 compared to the 20th-century average (1901-2000). Blue bars indicate cooler-than-average years; red bars show warmer-than-average years. NOAA Climate.gov graph, based on data from the National Centers for Environmental Information.
Source: NOAA

Global temperature in 2024

According to the annual report from NOAA National Centers for Environmental Information, 2024 was the warmest year since global records began in 1850. The global average surface temperature was 2.32 Fahrenheit (1.29 degrees Celsius) above the 20th-century average (57.0 degrees Fahrenheit, or 13.9 degrees Celsius) and 2.63 degrees Fahrenheit (1.46 degrees Celsius) above the pre-industrial average (56.7 degrees Fahrenheit, or 13.7 degrees Celsius), which NOAA defines as the period from 1850-1900.

IT'S OFFICIAL: 2024 was the world's warmest year since records began in 1850.

Read more HERE...

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From Space to Soil: How NASA Sees Forests

From NASA's Earth Science Division Editorial Team
at https://science.nasa.gov/earth/from-space-to-soil-how-nasa-sees-forests/
June 17, 2025

NASA uses satellite lidar technology to study Earth’s forests, key carbon sinks.

Source: NASA

NASA uses satellite lidar technology to study Earth’s forests, key carbon sinks. The GEDI mission maps forest height and biomass from the International Space Station, while ICESat-2 fills polar data gaps. Together, they enable a first-of-its-kind global biomass map, guiding smarter forest conservation and carbon tracking.

See the original post and explore more at https://science.nasa.gov/earth/from-space-to-soil-how-nasa-sees-forests/.

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NASA-French Satellite Spots Large-Scale River Waves for First Time

By Sally Younger, NASA's Earth Science News Team, NASA Jet Propulsion Laboratory
at https://www.jpl.nasa.gov/news/nasa-french-satellite-spots-large-scale-river-waves-for-first-time/
May 21, 2025

The SWOT satellite is helping scientists size up flood waves on waterways like the Yellowstone River, pictured here in October 2024 in Montana. SWOT measures the height of surface waters, including the ocean, and hundreds of thousands of rivers, lakes, and reservoirs in the U.S. alone.
The SWOT satellite is helping scientists size up flood waves on waterways like the Yellowstone River, pictured here in October 2024 in Montana. SWOT measures the height of surface waters, including the ocean, and hundreds of thousands of rivers, lakes, and reservoirs in the U.S. alone.
Credit: NPS

The SWOT mission captured the flood waves, which stretched from 47 to 166 miles long, as they traveled down rivers in Montana, Texas, and Georgia.

In a first, researchers from NASA and Virginia Tech used satellite data to measure the height and speed of potentially hazardous flood waves traveling down U.S. rivers. The three waves they tracked were likely caused by extreme rainfall and by a loosened ice jam. While there is currently no database that compiles satellite data on river flood waves, the new study highlights the potential of space-based observations to aid hydrologists and engineers, especially those working in communities along river networks with limited flood control structures such as levees and flood gates.

Unlike ocean waves, which are ordinarily driven by wind and tides, and roll to shore at a steady clip, river waves (also called flood or flow waves) are temporary surges stretching tens to hundreds of miles. Typically caused by rainfall or seasonal snowmelt, they are essential to shuttling nutrients and organisms down a river. But they can also pose hazards: Extreme river waves triggered by a prolonged downpour or dam break can produce floods.

"Ocean waves are well known from surfing and sailing, but rivers are the arteries of the planet. We want to understand their dynamics," said Cedric David, a hydrologist at NASA’s Jet Propulsion Laboratory in Southern California and a coauthor of a new study published May 14 in Geophysical Research Letters.

Read more HERE...

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quotation #5 apply banner

NASA Sensor on Space Station Eyes Contamination off California Coast

By Sally Younger, NASA Jet Propulsion Laboratory
at https://www.jpl.nasa.gov/news/nasa-sensor-on-space-station-eyes-contamination-off-california-coast/
June 12, 2025

Instruments in space are helping scientists map wastewater plumes flowing into the Pacific Ocean from the heavily polluted Tijuana River, seen here with the San Diego skyline to the north.
Instruments in space are helping scientists map wastewater plumes flowing into the Pacific Ocean from the heavily polluted Tijuana River, seen here with the San Diego skyline to the north.
Credit: NOAA

Proof-of-concept results from the mouth of the Tijuana River in San Diego County show how an instrument called EMIT could aid wastewater detection.

An instrument built at NASA’s Jet Propulsion Laboratory to map minerals on Earth is now revealing clues about water quality. A recent study found that EMIT (Earth Surface Mineral Dust Source Investigation) was able to identify signs of sewage in the water at a Southern California beach.

The authors of the study examined a large wastewater plume at the mouth of the Tijuana River, south of Imperial Beach near San Diego. Every year, millions of gallons of treated and untreated sewage enter the river, which carries pollutants through communities and a national reserve on the U.S.-Mexico border before emptying into the Pacific Ocean. Contaminated coastal waters have been known to impact human health — from beachgoers to U.S. Navy trainees — and harm marine ecosystems, fisheries, and wildlife.

Read more HERE...

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Applying AI to MODIS Data Analysis

By Charlie Plain, NASA EarthData
at https://www.earthdata.nasa.gov/news/feature-articles/applying-ai-modis-data-analysis?utm_source=newsletter&utm_medium=email&utm_campaign=earthdata-discovery-052025
May 9, 2025

Researchers taught the SatVision Top-of-Atmosphere foundation model to recognize MODIS imagery features.

Artificial intelligence systems can rapidly analyze massive amounts of NASA’s Earth data, discover embedded information, and make the valuable measurements even more useful. To make the most of this technology, researchers with Goddard Space Flight Center in Greenbelt, Maryland, recently trained supercomputers to learn information from one of NASA’s marquee datasets, Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. The center’s Data Science Group used machine-learning techniques to train a model to learn visual patterns and discern atmospheric features such as clouds or dust from land, water, and other features in millions of MODIS images.

The SatVision-TOA model was trained by taking actual MODIS truth images and randomly masking them to hide details. Two versions of the model — Huge and Giant — were then challenged to try to complete the image based on their best predictions. The second, Giant version with three billion parameters completed the picture most accurately.
The SatVision-TOA model was trained by taking actual MODIS truth images and randomly masking them to hide details. Two versions of the model — Huge and Giant — were then challenged to try to complete the image based on their best predictions. The second, Giant version with three billion parameters completed the picture most accurately.
Credit: Jie Gong and Mark Carroll.

This powerful generative artificial intelligence (AI) model, called SatVision-TOA (Top-of-Atmosphere), can make very accurate predictions to complete the shape of objects in obscured images and quickly identify features for analysis. SatVision-TOA has broad applications including cloud property retrieval, land cover mapping, flood and disaster monitoring, urban planning, and environmental analysis. What’s more, the model can potentially be applied to imagery from other instruments with technology similar to MODIS.

Read more HERE...

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NOAA’s Satellites Track Saharan Dust Blowing Across the Atlantic

From NOAA National Environmental Satellite, Data, and Information Service
at https://www.nesdis.noaa.gov/news/noaas-satellites-track-saharan-dust-blowing-across-the-atlantic
June 4, 2025

Phenomenon/a: Dust, Saharan Air Layer
Satellite: GOES-19 (GOES East)
Product: GeoColor
Instrument: Advanced Baseline Imager
Timespan: May 28 - June 2, 2025 (6:00 - 23:50 UTC)

A giant plume of dust from the Sahara Desert made its way from Africa to the United States to kick off the start of meteorological summer in the Northern Hemisphere.

NOAA’s GOES-19 satellite captured this multi-day time lapse imagery of the dust blowing thousands of miles across the Atlantic from May 28th to June 2nd.

The dust is due to a two to 2.5-mile-thick layer of the atmosphere, called the Saharan Air Layer, crossing over the Atlantic Ocean. The warmth, dryness and strong winds associated with this layer have been shown to suppress tropical cyclone formation and intensification.

When it reaches the U.S., it can cause hazy skies as well as vivid sunrises and sunsets as the sun’s rays scatter the dust in the atmosphere. It can even suppress thunderstorm development over locations where the dust is especially thick.

Read more HERE...

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quotation #6 In the News banner

Career Exploration: Using Ingenuity and Innovation to Create 'Memory Metals'

By NASA STEM Team
at https://www.nasa.gov/learning-resources/career-exploration-using-ingenuity-and-innovation-to-create-memory-metals/
June 17, 2025

Othmane Benafan is a NASA engineer whose work is literally reshaping how we use aerospace materials — he creates metals that can shape shift. Benafan, a materials research engineer at NASA’s Glenn Research Center in Cleveland, creates metals called shape memory alloys that are custom-made to solve some of the most pressing challenges of space exploration and aviation.

"A shape memory alloy starts off just like any other metal, except it has this wonderful property: it can remember shapes," Benafan says. "You can bend it, you can deform it out of shape, and once you heat it, it returns to its shape."

An alloy is a metal that’s created by combining two or more metallic elements. Shape memory alloys are functional metals. Unlike structural metals, which are fixed metal shapes used for construction or holding heavy objects, functional metals are valued for unique properties that enable them to carry out specific actions.

Read more HERE...

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NOAA Abandons Plan to Defer Upkeep of Key Weather Satellites

By Scott Waldman, E&E News by Politico
at https://www.eenews.net/articles/noaa-abandons-plan-to-defer-upkeep-of-key-weather-satellites/
April 6, 2025

Agency officials said Monday that NOAA would continue to maintain the Joint Polar Satellite System. A March 28 memo had outlined steps to put that work on hold.

The JPSS-4 satellite orbits in this artist's rendering.
The JPSS-4 satellite orbits Earth in this artist's rendering.
Source: Lamont W. Harvey/National Environmental Satellite, Data and Information Service

NOAA has backed off a plan that would have deferred the maintenance of satellites critical to weather forecasts and storm predictions.

A March 28 memo obtained by POLITICO’s E&E News and highlighted in a previous story showed the agency was prepared to operate its Joint Polar Satellite System under a "minimum mission operations approach." The directive would have meant the delay of maintenance work such as flight software updates — which former NOAA officials said could ultimately degrade the accuracy of weather forecasts.

But NOAA said Monday it would continue to maintain the satellite network. At issue was whether the agency was going to renew a contract for its upkeep, which it says has been done.

Read more HERE...

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Backlog of Unsigned Contracts Paralyzes NOAA

By Scott Waldman, E&E News by Politico
at https://www.eenews.net/articles/backlog-of-unsigned-contracts-paralyzes-noaa/
May 20, 2025

An agency official said “everything has ground to a halt,” waiting for Commerce Secretary Howard Lutnick to review more than 200 agreements.

Commerce Secretary Howard Lutnick listens as President Donald Trump speaks during an April 17 event at the White House.
Commerce Secretary Howard Lutnick listens as President Donald Trump speaks during an April 17 event at the White House.
Credit: Alex Brandon/AP Photo

A growing backlog of hundreds of unsigned NOAA contracts has slowed agency operations to a crawl — so much so that even Sen. Ted Cruz, a staunch ally of the Trump administration, has raised concerns about the gridlock.

The bottleneck is due largely to one man: Commerce Secretary Howard Lutnick, whose portfolio includes the National Oceanic and Atmospheric Administration. After taking office in February, Lutnick insisted that he personally review any contract in excess of $100,000.

Intended as an attempt to identify waste and redundancy, the policy instead has sown chaos at the nation’s preeminent climate and weather agency, say former and current NOAA officials.

More than 200 NOAA contracts — including one aimed at helping local communities prepare for extreme weather events — are now stuck in limbo, waiting for Lutnick to make a decision. The impasse has forced NOAA to furlough employees, and it has created a work environment where NOAA staffers spend much of their time trying to justify their work — rather than doing it, they say.

Read more HERE...

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quotation #7 For Teachers banner
Apple for the teacher

ARRL Teachers Institute on Wireless Technology

Thanks to Fredric Raab, Licensed Amateur Radio Operator and Adjunct Faculty, College of the Desert, Palm Desert, California

The Teachers Institute (TI-1) is a 4-day professional development workshop where teachers will be introduced to the basics of electronic principles, radio frequency propagation, and antennas. They will gain practical experience building simple electronic circuits and antennas. Additionally, the teachers will participate in a hidden transmitter hunting activity (aka foxhunting).

Additional elective sessions include "Balloons and Amateur Radio," "Space Comm & Radio Astronomy," and "Remote Sensors & Data Gathering."

We provide free equipment, live demos, and hands-on lessons on wireless technology to bring back to your classroom.

View and download an informative brochure with more details HERE.

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Cooking Up a Storm: Atmospheric Science in Your Kitchen

From NOAA News & Features
at https://www.noaa.gov/education/multimedia/video/cooking-up-storm-atmospheric-science-in-your-kitchen
November 22, 2021

Along with the potatoes, cranberry sauce, and stuffing, your kitchen has all the ingredients — air, water, and heat — to cook up a perfect scientific storm.

Brush up on your meteorology with these tasty, try-this-at-home activities...along with one "maybe-don't-try-this at home!" We're headed to the kitchen to answer your burning questions: What's the dew point of your leftovers? Why do some seasonings appear to defy gravy — uh — gravity? From convection to condensation, these kitchen science demos are sure to give you some food for thought.

Read on to discover...

Read more HERE...

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Explore Our Dynamic Sun

By Kat Troche, NASA Explore
at https://science.nasa.gov/solar-system/sun/explore-our-dynamic-sun/
June 16, 2025

from NASA’s Heliophysics Education Activation Team (NASA HEAT) and the Astronomical Society of the Pacific/Night Sky Network

Have you ever wondered about what the Sun is made of? Or why do you get sunburned on even cloudy days? NASA’s new Explore the Sun toolkit brings the wonders of solar science to you, offering answers to these questions and more!

Solar images from NASA’s Solar Dynamics Observatory show different features on the Sun.
Solar images from NASA’s Solar Dynamics Observatory show different features on the Sun, including sunspots in the visible light spectrum. Filaments and prominences can be seen in hydrogen-alpha, coronal mass ejections in X-ray, and details in ultraviolet light. On the right side of the banner, aurorae observed on Earth by the International Space Station is shown, along with aurorae on other planets as seen by NASA's Hubble Space Telescope and James Webb Space Telescope.
Credit: NASA/Astronomical Society of the Pacific
Larger image

A collaboration between NASA’s Heliophysics Education Activation Team (NASA HEAT) and the Astronomical Society of the Pacific’s Night Sky Network program, this resource was developed for informal educators, amateur astronomers, and astronomy enthusiasts alike, providing engaging activities for anyone eager to learn more about our nearest star.

Whether you're hosting a solar viewing event or an indoor presentation, the Our Dynamic Sun toolkit provides easy-to-use materials designed to spark curiosity. Each card in the set pairs NASA images with clear explanations for each topic:

These cards not only answer common questions the public may have, but also highlight how NASA’s solar research helps us understand space weather, solar storms, and their impacts on our daily lives.

Bring the Sun’s story to your community and inspire the next generation of explorers. You can download this free Our Dynamic Sun toolkit here: https://bit.ly/suntoolkit.

See the original item with lots of links to more information at https://science.nasa.gov/solar-system/sun/explore-our-dynamic-sun/.

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Designing Drone-Based Solutions for Climate Education in Secondary Schools

By Hannah H. Ziegler and Jae Ryu, The Science Teacher, Volume 92, 2025
Reported by Taylor & Francis Online
at https://www.tandfonline.com/doi/full/10.1080/00368555.2025.2468336?src=exp-la&utm_medium=email&utm_source=rasa_weekly&utm_campaign=newsletter
May 7, 2025

Abstract

This pilot initiative explores the design and integration of drone technology in a 9th-grade Earth and Space Science curriculum to enhance student engagement in climate science. In this three-week Drone Climate Project, students built drones using low-cost kits, learned programming via Arduino IDE software, and utilized Tinkercad for the 3D design and printing of drone attachments in small groups. The project encouraged hands-on learning and problem-solving as youth connected STEM principles with real-world climate issues. Facilitated by self-paced instructional materials and collaborative-design processes, students developed meaningful solutions to combat relevant environmental challenges. Overall, this work serves as a model for integrating drones into diverse educational settings and demonstrates the potential of drones as instructional tools in promoting climate education. Thus, we invite other educators to adapt and implement drone-based curricula in their own educational contexts.

Read more HERE...

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quotation #8 More Lessons fro the Sky banner

World Wide Weather

How's the weather today? Is it the same as yesterday? Is it the same where your friend lives in a distant city? Will it be different tomorrow?

In this lesson, learners describe weather all over the world. After exploring causes of weather patterns, they will describe how weather in one location helps predict the weather in related areas.

Teams of learners study, chart, and write about the weather and its effects on a particular city, for a month. The team constructs a multimedia presentation of its findings. The class constructs a final project that uses and merges the teams' findings to demonstrate weather patterns around the world.

Grade Level: 3-5
Time Requirement: 2-3 class periods
Prerequisites: None
Relevant Disciplines: Life Science, Earth & Space Science, Geography


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Write for More Lessons from the Sky

Share your satellite-based lesson ideas with the teaching community.

Send us a complete lesson plan, or simply suggest a lesson idea. If you found the idea online, please share the source as well. The lesson can be about anything that helps connect learners with satellite-based technology - any grade level K-12 - any STEM subject area including geography.

Satellite-technology includes any part of the science, math, engineering, or technology of satellites, rockets, and remote sensing instruments as well as the use of any environmental satellite data to explore questions related to aspects of global change and local impacts in the long term, short term, and catastrophic time frames. Of special interest are lessons providing opportunities for learners to inquire, experiment, and apply mathematics.

Perhaps you designed a lesson yourself - we will happily prepare it for future publication in More Lessons from the Sky and inclusion in the SEA's online Lesson Plan Library with full credit to the originating author(s). Perhaps you found a worthy lesson plan published elsewhere - we will do the research for possible inclusion in a lesson plan spotlight. In either case, you will receive full credit for developing and/or bringing the lesson to the attention of the teaching community. Don't forget to share your insights if you tried the lesson with students.

Please share your ideas at SEA.Librarian@SatEd.org.



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