Blog

Glenn Research Center
Commercial Lunar Payload Services (CLPS)
Cryogenic Fluid Management (CFM)
Technology Demonstration
Editor’s note, Feb. 6, 2024: This article has been updated to clarify that the Radio Frequency Mass Gauge estimates how much propellant is available in a tank. It does not make an exact measurement. It’s easy to measure fuel in tanks on Earth, where gravity pulls the liquid to the bottom. But in space, the game […]
Posted February 6, 2024
Dark Energy
Dark Matter
Euclid
Galaxies
James Webb Space Telescope (JWST)
Nancy Grace Roman Space Telescope
SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer)
Stellar Evolution
The Big Bang
The Universe
Some 13.8 billion years ago, the universe began with a rapid expansion we call the big bang. After this initial expansion, which lasted a fraction of a second, gravity started to slow the universe down. But the cosmos wouldn’t stay this way. Nine billion years after the universe began, its expansion started to speed up, […]
Posted February 5, 2024
Marshall Space Flight Center
People of NASA
NASA Administrator Bill Nelson on Monday named Joseph Pelfrey director of the agency’s Marshall Space Flight Center in Huntsville, Alabama, effective immediately. Pelfrey has served as acting center director since July 2023. “Joseph is a respected leader who shares the passion for innovation and exploration at NASA Marshall.
Posted February 5, 2024
STEM Engagement at NASA
Jet Propulsion Laboratory
After months of preparation, more than 100 students competed at the fast-paced annual academic competition hosted by NASA’s Jet Propulsion Laboratory. For the second year in a row, a team from Irvine’s University High School claimed victory at a regional competition of the National Science Bowl, hosted Saturday, Feb.
Posted February 5, 2024
Langley Research Center
Commercial Lunar Payload Services (CLPS)
Later this month, NASA’s commercial lunar delivery services provider Intuitive Machines will launch its Nova-C lunar lander carrying several NASA science and technology payloads, including the Navigation Doppler Lidar (NDL).
Posted February 5, 2024
NASA History
Bruce McCandless
Humans in Space
Robert L. Gibson
STS-41B
As astronaut Bruce McCandless II flew the Manned Maneuvering Unit (MMU) out of the space shuttle Challenger’s payload bay for the first time on February 7, 1984, many in the agency were fearful about the use of a self-propelled and untethered backpack in space.  (Previous spacewalkers remained connected to the vehicle with tethers.
Posted February 3, 2024
2024 Solar Eclipse
Eclipses
Skywatching
Solar Eclipses
A total solar eclipse is a captivating experience – evoking feelings of awe and wonder that are sometimes best expressed through art. Inspired by the upcoming total solar eclipse of April 8, 2024, artists Tyler Nordgren and Kristen Perrin have designed two posters for NASA that present the magic of the eclipse in unique ways. […]
Posted February 2, 2024
Humans in Space
Astronauts
In-flight Education Downlinks
International Space Station (ISS)
ISS Research
Jasmin Moghbeli
Johnson Space Center
Learning Resources
Loral O'Hara
NASA Headquarters
Students from California and Massachusetts will have separate opportunities next week to hear from NASA astronauts aboard the International Space Station. The two Earth-to-space calls will air live Monday, Feb. 5, and Friday, Feb. 9, on NASA+ and agency’s website. Learn how to stream NASA TV through a variety of platforms including social media.
Posted February 2, 2024
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