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By NASA
4 min read
NASA to Launch Three Rockets from Alaska in Single Aurora Experiment
Three NASA-funded rockets are set to launch from Poker Flat Research Range in Fairbanks, Alaska, in an experiment that seeks to reveal how auroral substorms affect the behavior and composition of Earth’s far upper atmosphere.
The experiment’s outcome could upend a long-held theory about the aurora’s interaction with the thermosphere. It may also improve space weather forecasting, critical as the world becomes increasingly reliant on satellite-based devices such as GPS units in everyday life.
Colorful ribbons of aurora sway with geomagnetic activity above the launch pads of Poker Flat Research Range. NASA/Rachel Lense The University of Alaska Fairbanks (UAF) Geophysical Institute owns Poker Flat, located 20 miles north of Fairbanks, and operates it under a contract with NASA’s Wallops Flight Facility in Virginia, which is part of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
The experiment, titled Auroral Waves Excited by Substorm Onset Magnetic Events, or AWESOME, features one four-stage rocket and two two-stage rockets all launching in an approximately three-hour period.
Colorful vapor tracers from the largest of the three rockets should be visible across much of northern Alaska. The launch window is March 24 through April 6.
The mission, led by Mark Conde, a space physics professor at UAF, involves about a dozen UAF graduate student researchers at several ground monitoring sites in Alaska at Utqiagvik, Kaktovik, Toolik Lake, Eagle, and Venetie, as well as Poker Flat. NASA delivers, assembles, tests, and launches the rockets.
“Our experiment asks the question, when the aurora goes berserk and dumps a bunch of heat in the atmosphere, how much of that heat is spent transporting the air upward in a continuous convective plume and how much of that heat results in not only vertical but also horizontal oscillations in the atmosphere?” Conde said.
Confirming which process is dominant will reveal the breadth of the mixing and the related changes in the thin air’s characteristics.
“Change in composition of the atmosphere has consequences,” Conde said. “And we need to know the extent of those consequences.”
Most of the thermosphere, which reaches from about 50 to 350 miles above the surface, is what scientists call “convectively stable.” That means minimal vertical motion of air, because the warmer air is already at the top, due to absorption of solar radiation.
A technician with NASA’s Wallops Flight Facility sounding rocket office works on one of the payload sections of the rocket that will launch for the AWESOME campaign. NASA/Lee Wingfield When auroral substorms inject energy and momentum into the middle and lower thermosphere (roughly 60 to 125 miles up), it upsets that stability. That leads to one prevailing theory — that the substorms’ heat is what causes the vertical-motion churn of the thermosphere.
Conde believes instead that acoustic-buoyancy waves are the dominant mixing force and that vertical convection has a much lesser role. Because acoustic-buoyancy waves travel vertically and horizontally from where the aurora hits, the aurora-caused atmospheric changes could be occurring over a much broader area than currently believed.
Better prediction of impacts from those changes is the AWESOME mission’s practical goal.
“I believe our experiment will lead to a simpler and more accurate method of space weather prediction,” Conde said.
Two two-stage, 42-foot Terrier-Improved Malemute rockets are planned to respectively launch about 15 minutes and an hour after an auroral substorm begins. A four-stage, 70-foot Black Brant XII rocket is planned to launch about five minutes after the second rocket.
The first two rockets will release tracers at altitudes of 50 and 110 miles to detect wind movement and wave oscillations. The third rocket will release tracers at five altitudes from 68 to 155 miles.
Pink, blue, and white vapor traces should be visible from the third rocket for 10 to 20 minutes. Launches must occur in the dawn hours, with sunlight hitting the upper altitudes to activate the vapor tracers from the first rocket but darkness at the surface so ground cameras can photograph the tracers’ response to air movement.
By Rod Boyce
University of Alaska Fairbanks Geophysical Institute
NASA Media Contact: Sarah Frazier
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Last Updated Mar 21, 2025 Related Terms
Sounding Rockets Goddard Space Flight Center Heliophysics Heliophysics Division Heliophysics Research Program Science & Research Science Mission Directorate Sounding Rockets Program Uncategorized Wallops Flight Facility Explore More
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Technicians with NASA and Lockheed Martin fitted three spacecraft adapter jettison fairing panels onto the service module of the agency’s Orion’s spacecraft. The operation completed on Wednesday, March 19, 2025, inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida.
The European-built service module is the powerhouse that will propel the spacecraft to the Moon. Its four solar array wings which were installed to its exterior in early March. The latest addition of fairing panels on Orion’s service module will protect the solar array wings, shielding them from the heat, wind, and acoustics of launch and ascent, and also help redistribute the load between Orion and the massive thrust of the SLS (Space Launch System) rocket during liftoff and ascent. Once the spacecraft is above the atmosphere, the three fairing panels will separate from the service module, allowing the wings to unfurl.
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Image credit: NASA/Glenn Benson
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By NASA
Northrop Grumman’s Cygnus spacecraft is pictured in the grips of the Canadarm2 robotic arm shortly after its capture Credit: NASA After delivering more than 8,200 pounds of supplies, scientific investigations, commercial products, hardware, and other cargo to the orbiting laboratory for NASA and its international partners, Northrop Grumman’s uncrewed Cygnus spacecraft is scheduled to depart the International Space Station on Friday, March 28.
Watch NASA’s live coverage of undocking and departure at 6:30 a.m. EDT on NASA+. Learn how to watch NASA content through a variety of platforms, including social media.
This mission was the company’s 21st commercial resupply mission to the space station for NASA.
Flight controllers on the ground will send commands for the space station’s Canadarm2 robotic arm to detach Cygnus from the Unity module’s Earth-facing port, then maneuver the spacecraft into position for release at 6:55 a.m. NASA astronaut Nichole Ayers will monitor Cygnus’ systems upon its departure from the space station.
Cygnus – filled with trash packed by the station crew – will be commanded to deorbit on Sunday, March 30, setting up a re-entry where the spacecraft will safely burn up in Earth’s atmosphere.
The Northrop Grumman spacecraft arrived at the space station Aug. 6, 2024, following launch on a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.
Get breaking news, images, and features from the space station on the station blog, Instagram, Facebook, and X.
Learn more about Cygnus’ mission and the International Space Station at:
https://www.nasa.gov/station
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Julian Coltre / Josh Finch
Headquarters, Washington
202-358-1100
julian.n.coltre@nasa.gov / joshua.a.finch@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Mar 21, 2025 LocationNASA Headquarters Related Terms
International Space Station (ISS) Humans in Space Johnson Space Center NASA Headquarters
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By Space Force
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