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) 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) ISS Expedition 13 Flight Engineer, Thomas Reiter, on board ISS processes samples for the Renal Stone investigation.NASA Exposure to microgravity induces bone atrophy/bone loss which increases circulating calcium, impacting the renal stone risk. Risk mitigation strategies including exercise and hydration are well-defined although the [...]

1 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) NASA astronaut and Expedition 65 Flight Engineer Mark Vande Hei sets up the International Space Station’s exercise bicycle, also known as the Cycle Ergometer with Vibration Isolation and Stabilization (CEVIS), inside the U.S. Destiny laboratory module. Vande Hei later strapped himself on the CEVIS [...]

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 [...]

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 mission to the International Space Station in April. The virtual interviews from Star City, Russia, [...]

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 of extreme temperature swings, from scorching heat to deep freeze. Key Facts The newly [...]

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 saw the way the Sun’s shadow worked in different places. And they figured, well, that’s [...]