NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) observatory and PUNCH (Polarimeter to Unify the Corona and Heliosphere) satellites lift off on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California on March 11, 2025.Credit: SpaceX NASA’s newest astrophysics observatory, SPHEREx, is on its way [...]

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2 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA astronaut and Expedition 72 Commander Suni Williams displays a set of BioNutrients production packs during an experiment aboard the International Space Station. The experiment uses engineered yeast to produce nutrients and vitamins to support future astronaut health.NASA NASA’s BioNutrients series of experiments is [...]

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 context of human spaceflight can be viewed as a trade-based system. The relevant evidence in [...]

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 in the Gulf of Mexico off the coast of Pensacola, Florida, Sunday, Aug. 2, 2020. [...]

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, at Kennedy Space Center in Cape Canaveral, Fla. During the 14-day mission, Endeavour and the [...]

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 cause physiological changes. One of these changes is the inability to completely empty the bladder or [...]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) ESA (European Space Agency) astronaut and Expedition 67 Flight Engineer Samantha Cristoforetti works inside the International Space Station’s Unity module reconfiguring components for the Solid Fuel Ignition and Extinction investigation that explores fire growth and fire safety techniques in space.NASA Safe, breathable air is [...]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Astronaut Serena M. Auñón-Chancellor Examines Her Eyes in SpaceNASA Exposure to altered gravity can cause ocular and brain structural changes to develop during spaceflight; these changes could lead to vision alterations, cognitive effects, or other deleterious health effects. SANS is a syndrome unique to [...]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA astronaut Anne McClain is inside the Destiny laboratory module surrounded by exercise gear, including laptop computers and sensors that measure physical exertion and aerobic capacity, during a workout session aboard the International Space Station. NASA Spaceflight causes measures of maximum aerobic capacity to [...]