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1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA astronaut Douglas Hurley is helped out of the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship after he and NASA astronaut Robert Behnken landed […]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) The space shuttle Endeavour is seen on launch pad 39a as a storm passes by prior to the rollback of the Rotating Service Structure (RSS), Thursday, April 28, 2011, […]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Astronaut Mark Vande Hei swaps out components on an advanced new toilet installed inside the International Space Station. NASA Exposure to the altered gravity in the spaceflight environment may […]

6 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Risks Concept Risk is inherent in human spaceflight. However, specific risks can and should be understood, managed, and mitigated to reduce threats posed to astronauts. Risk management in the […]

Explore This Section Earth Home Earth Observer Home Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam More Archives 27 min read Summary of Special Engage Session on “Remote Sensing and the Future of Earth […]

Explore This Section Earth Home Earth Observer Home Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam More Archives 13 min read The NASA DC-8 Retires: Reflections on its Contributions to Earth System Science Introduction […]

Official portrait of NASA astronaut Jonny Kim, who will serve as a flight engineer during Expedition 73. Credit: NASA NASA will provide interview opportunities with astronaut Jonny Kim beginning at 9 a.m. EDT, Tuesday, March 18, to highlight his upcoming […]

Artist’s rendering of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez Díaz, SMM (IAC) The Discovery A possible “super-Earth” orbits a relatively close, Sun-like star, and could be a habitable world – but one […]

A chevron nozzle is installed on NASA’s Learjet for a mid-March 2001 flight test at Lorain Country Airport to verify that in an emergency, the aircraft could be flown using only the experimental engine. Credit: NASA/Marvin Smith Shortly after dawn […]

2 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) This was a magical revelation for the Greeks and the Egyptians, who were able to see from the motions of the stars and the way the Sun moved. They […]