March 2025

Human Health and Performance
Human System Risks
Sunlight exposure primarily affects the eye and skin and is mitigated by current standards and countermeasures.  An increase in the prevalence of high-power ground-based lasers capable of reaching the ISS, and possibly even the Moon, could cause acute laser exposure damaging hemorrhagic retinal lesions resulting in temporary or permanent damage to
Posted March 11, 2025
Human Health and Performance
Human System Risks
Regardless of mission length or objectives, all human spaceflight requires some degree of in-mission medical support. The transition from a gravitational environment to microgravity, coupled with living in a closed-loop environment, can result in variable physiological effects and health risks.
Posted March 11, 2025
Human Health and Performance
Human System Risks
Exposure to the spaceflight environment evidence indicates alterations in microbial virulence and astronaut immune function.
Posted March 11, 2025
Human Health and Performance
Human System Risks
Exposure to the isolation and confinement of spaceflight can result in decrements in cognitive and behavioral functioning.
Posted March 11, 2025
Human Health and Performance
Human System Risks
Hostile, enclosed spaceflight environments (including space vehicles and suits) do not have the benefit of natural carbon dioxide (CO2) removal. In these environments, equipment (e.g., the Carbon Dioxide Removal Assembly, lithium hydroxide, and amine systems) control CO2 levels and mitigate consequences of elevated CO2 exposure.
Posted March 11, 2025
Human Health and Performance
Human System Risks
Note: The Concern of Venous Thromboembolism is historical and now a component of CV Risk. Stagnant or reverse flow in the internal jugular vein has been observed in 6 of 11 crew members (55%) tested in-mission on approximately flight day 50; one crewmember was found to have an occlusive internal jugular vein thrombus requiring treatment […]
Posted March 11, 2025
Earth Science
Introduction Since 1987, a highly modified McDonnell Douglas DC-8 aircraft has been a workhorse in NASA’s Airborne Science Program (ASP)—see Photo 1.
Posted March 11, 2025
Earth Science
Introduction On October 16, 2024, a special session of the NASA Goddard Engage series took place in the Goett Auditorium (Building 3) at NASA’s Goddard Space Flight Center (GSFC). The Engage series is intended to explain work at GSFC in an immersive and nontechnical setting.
Posted March 11, 2025
Humans in Space
Astronauts
Expedition 73
International Space Station (ISS)
ISS Research
Jonny Kim
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, will stream live on NASA+.
Posted March 11, 2025
Astrophysics
Exoplanets
Studying Exoplanets
Super-Earth Exoplanets
Uncategorized
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 confirmed planet is the outermost of three detected so far around a star called HD 20794, just 20 light-years from Earth. […]
Posted March 11, 2025
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