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By NASA
5 min read
NASA Launching Rockets Into Radio-Disrupting Clouds
NASA is launching rockets from a remote Pacific island to study mysterious, high-altitude cloud-like structures that can disrupt critical communication systems. The mission, called Sporadic-E ElectroDynamics, or SEED, opens its three-week launch window from Kwajalein Atoll in the Marshall Islands on Friday, June 13.
The atmospheric features SEED is studying are known as Sporadic-E layers, and they create a host of problems for radio communications. When they are present, air traffic controllers and marine radio users may pick up signals from unusually distant regions, mistaking them for nearby sources. Military operators using radar to see beyond the horizon may detect false targets — nicknamed “ghosts” — or receive garbled signals that are tricky to decipher. Sporadic-E layers are constantly forming, moving, and dissipating, so these disruptions can be difficult to anticipate.
An animated illustration depicts Sporadic-E layers forming in the lower portions of the ionosphere, causing radio signals to reflect back to Earth before reaching higher layers of the ionosphere. NASA’s Goddard Space Flight Center/Conceptual Image Lab Sporadic-E layers form in the ionosphere, a layer of Earth’s atmosphere that stretches from about 40 to 600 miles (60 to 1,000 kilometers) above sea level. Home to the International Space Station and most Earth-orbiting satellites, the ionosphere is also where we see the greatest impacts of space weather. Primarily driven by the Sun, space weather causes myriad problems for our communications with satellites and between ground systems. A better understanding of the ionosphere is key to keeping critical infrastructure running smoothly.
The ionosphere is named for the charged particles, or ions, that reside there. Some of these ions come from meteors, which burn up in the atmosphere and leave traces of ionized iron, magnesium, calcium, sodium, and potassium suspended in the sky. These “heavy metals” are more massive than the ionosphere’s typical residents and tend to sink to lower altitudes, below 90 miles (140 kilometers). Occasionally, they clump together to create dense clusters known as Sporadic-E layers.
The Perseids meteor shower peaks in mid-August. Meteors like these can deposit metals into Earth’s ionosphere that can help create cloud-like structures called Sporadic-E layers. NASA/Preston Dyches “These Sporadic-E layers are not visible to naked eye, and can only be seen by radars. In the radar plots, some layers appear like patchy and puffy clouds, while others spread out, similar to an overcast sky, which we call blanketing Sporadic-E layer” said Aroh Barjatya, the SEED mission’s principal investigator and a professor of engineering physics at Embry-Riddle Aeronautical University in Daytona Beach, Florida. The SEED team includes scientists from Embry-Riddle, Boston College in Massachusetts, and Clemson University in South Carolina.
“There’s a lot of interest in predicting these layers and understanding their dynamics because of how they interfere with communications,” Barjatya said.
A Mystery at the Equator
Scientists can explain Sporadic-E layers when they form at midlatitudes but not when they appear close to Earth’s equator — such as near Kwajalein Atoll, where the SEED mission will launch.
In the Northern and Southern Hemispheres, Sporadic-E layers can be thought of as particle traffic jams.
Think of ions in the atmosphere as miniature cars traveling single file in lanes defined by Earth’s magnetic field lines. These lanes connect Earth end to end — emerging near the South Pole, bowing around the equator, and plunging back into the North Pole.
A conceptual animation shows Earth’s magnetic field. The blue lines radiating from Earth represent the magnetic field lines that charged particles travel along. NASA’s Goddard Space Flight Center/Conceptual Image Lab At Earth’s midlatitudes, the field lines angle toward the ground, descending through atmospheric layers with varying wind speeds and directions. As the ions pass through these layers, they experience wind shear — turbulent gusts that cause their orderly line to clump together. These particle pileups form Sporadic-E layers.
But near the magnetic equator, this explanation doesn’t work. There, Earth’s magnetic field lines run parallel to the surface and do not intersect atmospheric layers with differing winds, so Sporadic-E layers shouldn’t form. Yet, they do — though less frequently.
“We’re launching from the closest place NASA can to the magnetic equator,” Barjatya said, “to study the physics that existing theory doesn’t fully explain.”
Taking to the Skies
To investigate, Barjatya developed SEED to study low-latitude Sporadic-E layers from the inside. The mission relies on sounding rockets — uncrewed suborbital spacecraft carrying scientific instruments. Their flights last only a few minutes but can be launched precisely at fleeting targets.
Beginning the night of June 13, Barjatya and his team will monitor ALTAIR (ARPA Long-Range Tracking and Instrumentation Radar), a high-powered, ground-based radar system at the launch site, for signs of developing Sporadic-E layers. When conditions are right, Barjatya will give the launch command. A few minutes later, the rocket will be in flight.
The SEED science team and mission management team in front of the ARPA Long-Range Tracking and Instrumentation Radar (ALTAIR). The SEED team will use ALTAIR to monitor the ionosphere for signs of Sporadic-E layers and time the launch. U.S. Army Space and Missile Defense Command On ascent, the rocket will release colorful vapor tracers. Ground-based cameras will track the tracers to measure wind patterns in three dimensions. Once inside the Sporadic-E layer, the rocket will deploy four subpayloads — miniature detectors that will measure particle density and magnetic field strength at multiple points. The data will be transmitted back to the ground as the rocket descends.
On another night during the launch window, the team will launch a second, nearly identical rocket to collect additional data under potentially different conditions.
Barjatya and his team will use the data to improve computer models of the ionosphere, aiming to explain how Sporadic-E layers form so close to the equator.
“Sporadic-E layers are part of a much larger, more complicated physical system that is home to space-based assets we rely on every day,” Barjatya said. “This launch gets us closer to understanding another key piece of Earth’s interface to space.”
By Miles Hatfield
NASA’s Goddard Space Flight Center, Greenbelt, Md.
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Last Updated Jun 12, 2025 Related Terms
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By NASA
NASA astronaut Anne McClain points a camera at herself and takes a “space-selfie” during a May 1, 2025, spacewalk outside the International Space Station. Credit: NASA NASA astronaut and Spokane, Washington, native Anne McClain will participate in an event with students from the Mobius Discovery Center located in her hometown. McClain will answer prerecorded questions submitted by students from aboard the International Space Station.
Watch the 20-minute Earth-to-space call on the NASA STEM YouTube Channel.
The event will take place at 1:25 p.m. EDT on Tuesday, May 27. Media interested in covering the event must RSVP no later than 5 p.m. EDT on Friday, May 23, to Karen Hudson at 509-321-7125 or via email at: mkhudson@mobiusspokane.org.
The Mobius Discovery Center will host the event for elementary, middle, and high school students from various schools across the region, nonprofit organizations, and the Kalispel Tribe. This event is designed to foster imagination among students through exploration of hands-on exhibits and science, technology, engineering, art, and mathematics learning opportunities while inspiring students to consider McClain’s career path.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Important research and technology investigations taking place aboard the space station benefit people on Earth and lays the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars, inspiring Artemis Generation explorers, and ensuring the United States continues to lead in space exploration and discovery.
See videos of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
-end-
Gerelle Dodson
Headquarters, Washington
202-358-1600
gerelle.q.dodson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated May 22, 2025 LocationNASA Headquarters Related Terms
Humans in Space In-flight Education Downlinks International Space Station (ISS) Johnson Space Center Learning Resources NASA Headquarters View the full article
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A team from South Dakota State University with their project, “Soil Testing and Plant Leaf Extraction Drone,” took first place at the 2025 Gateways to Blue Skies Forum held May 20-21 in Palmdale, California. Advisor Todd Lechter, left, along with team members Nick Wolles, Keegan Visher, Nathan Kuehl and Laura Peterson, and graduate advisor Allea Klauenberg, right, accepted the award.NASA A team from South Dakota State University, with their project titled “Soil Testing and Plant Leaf Extraction Drone” took first place at the 2025 NASA Gateways to Blue Skies Competition, which challenged student teams to research aviation solutions to support U.S. agriculture.
The winning project proposed a drone-based soil and tissue sampling process that would automate a typically labor-intensive farming task. The South Dakota State team competed among eight finalists at the 2025 Blue Skies Forum May 20-21 in Palmdale, California, near NASA’s Armstrong Flight Research Center. Subject matter experts from NASA and industry served as judges.
“This competition challenges students to think creatively, explore new possibilities, and confront the emerging issues and opportunity spaces solvable through aviation platforms,” said Steven Holz, assistant project manager for University Innovation with NASA’s Aeronautics Research Mission Directorate and Blue Skies judge and co-chair. “They bring imaginative ideas, interesting insights, and an impressive level of dedication. It’s always an honor to work with the next generation of innovators participating in our competition.”
This competition challenges students to think creatively, explore new possibilities, and confront the emerging issues and opportunity spaces solvable through aviation platforms
Steven holz
Assistant Project Manager for University Innovation
The winning team members were awarded an opportunity to intern during the 2025-26 academic year at any of four aeronautics-focused NASA centers — Langley Research Center in Hampton, Virginia, Glenn Research Center in Cleveland, Ames Research Center in California’s Silicon Valley, or Armstrong Flight Research Center in Edwards, California.
“It’s been super-rewarding for our team to see how far we’ve come, especially with all these other amazing projects that we were competing against,” said Nathan Kuehl, team lead at South Dakota State University. “It wouldn’t have been possible without our graduate advisor, Allea Klauenberg, and advisor, Todd Lechter. We want to thank everybody that made this experience possible.”
Other awards included:
Second Place — University of Tulsa, CattleLog Cattle Management System Best Technical Paper — Boston University, PLAANT: Precision Land Analysis and Aerial Nitrogen Treatment Sponsored by NASA’s Aeronautics Research Mission Directorate, this year’s competition asked teams of university students to research new or improved aviation solutions to support agriculture that could be applied by 2035 or sooner. The goal of the competition, titled AgAir: Aviation Solutions for Agriculture, was to enhance production, efficiency, sustainability, and resilience to extreme weather.
At the forum, finalist teams presented concepts of aviation systems that could help the agriculture industry.Students had the opportunity to meet with NASA and industry experts, tour NASA Armstrong, and gain insight into the agency’s aviation mission.
U.S. agriculture provides food, fuel, and fiber to the nation and the world. However, the industry faces significant challenges. NASA Aeronautics is committed to supporting commercial, industrial, and governmental partners in advancing aviation systems to modernize agricultural capabilities.
The Gateways to Blue Skies competition is sponsored by NASA’s Aeronautics Research Mission Directorate’s University Innovation Project and is managed by the National Institute of Aerospace.
The National Institute of Aerospace has made available a livestream of the competition, as well as information about the finalists and their projects, and details about the 2025 competition.
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Last Updated May 22, 2025 EditorLillian GipsonContactRobert Margettarobert.j.margetta@nasa.gov Related Terms
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By Space Force
Summer is the time to enjoy the warm sunny days with family and friends but do it safely and never leave Mother Nature to chance and prepare for the unexpected.
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By NASA
Astronaut Anne McClain is pictured on May 1, 2025, near one of the International Space Station’s main solar arrays.Credit: NASA NASA astronaut Nichole Ayers and JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi will answer prerecorded questions submitted by middle and high school students from New York and Ohio. Both groups will hear from the astronauts aboard the International Space Station in two separate events.
The first event at 10:20 a.m. EDT on Tuesday, May 20, includes students from Long Beach Middle School in Lido Beach, New York. Media interested in covering the event at Long Beach Middle School must RSVP no later than 5 p.m. Monday, May 19, to Christi Tursi at: ctursi@lbeach.org or 516-771-3960.
The second event at 11 a.m. EDT on Friday, May 23, is with students from Vermilion High School in Vermilion, Ohio. Media interested in covering the event at Vermilion High School must RSVP no later than 5 p.m. Thursday, May 22, to Jennifer Bengele at: jbengele@vermilionschools.org or 440-479-7783.
Watch both 20-minute Earth-to-space calls live on NASA STEM YouTube Channel.
Long Beach Middle School will host the event for students in grades 6 through 8. The school aims to provide both the students and community with an experience that bridge gaps in space sciences with teaching and learning in classrooms.
Vermilion High School will host the event for students in grades 9 through 12, to help increase student interest in science, technology, engineering, and mathematics career pathways.
For more than 24 years, astronauts have continuously lived and worked aboard the space station, testing technologies, performing science, and developing skills needed to explore farther from Earth. Astronauts aboard the orbiting laboratory communicate with NASA’s Mission Control Center in Houston 24 hours a day through SCaN’s (Space Communications and Navigation) Near Space Network.
Research and technology investigations taking place aboard the space station benefit people on Earth and lay the groundwork for other agency missions. As part of NASA’s Artemis campaign, the agency will send astronauts to the Moon to prepare for future human exploration of Mars, inspiring Artemis Generation explorers and ensuring the United States continues to lead in space exploration and discovery.
See videos of astronauts aboard the space station at:
https://www.nasa.gov/stemonstation
-end-
Gerelle Dodson
Headquarters, Washington
202-358-1600
gerelle.q.dodson@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
Share
Details
Last Updated May 16, 2025 LocationNASA Headquarters Related Terms
Humans in Space In-flight Education Downlinks International Space Station (ISS) Johnson Space Center Learning Resources NASA Headquarters View the full article
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