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Researchers have released initial measurements of radiation levels experienced inside NASA's Orion spacecraft during its 25-day uncrewed Artemis I mission in 2022 around the moon and back to Earth.
Radiation worries. NASA has studied the impact of space radiation on human health for decades, dating back to the first crewed space missions of the 1960s.
By one NASA estimate, for each year that astronauts spend in deep space, about one-third of their DNA will be hit directly by heavy ions. [1] In increasing knowledge of the effects of cosmic radiation, NSRL studies may expand the understanding of the link between ionizing radiation and aging or neuro-degeneration, as well as cancer.
The South Atlantic Anomaly (SAA) is an area where Earth's inner Van Allen radiation belt comes closest to Earth's surface, dipping down to an altitude of 200 kilometres (120 mi). This leads to an increased flux of energetic particles in this region and exposes orbiting satellites (including the ISS) to higher-than-usual levels of ionizing ...
For instance, a NASA design study for an ambitious large space station envisioned 4 metric tons per square meter of shielding to drop radiation exposure to 2.5 mSv annually (± a factor of 2 uncertainty), less than the tens of millisieverts or more in some populated high natural background radiation areas on Earth, but the sheer mass for that ...
An image of the planet Uranus taken by the NASA spacecraft Voyager 2 in 1986. New research using data from the mission shows a solar wind event took place during the flyby, leading to a mystery ...
In its June 2022 announcement of plans to form the UAPIST, NASA named astrophysicist David Spergel as the chair of the team, and Daniel Evans, the assistant deputy associate administrator for research at NASA's Science Mission Directorate, as the official responsible for orchestrating the study. The team's objective, according to Spergel, was ...
Polaris Dawn was a private crewed spaceflight operated by SpaceX on behalf of Shift4 CEO Jared Isaacman, the first of three planned missions in the Polaris program.Launched 10 September 2024 as the 14th crewed orbital flight of a Crew Dragon spacecraft, Isaacman and his crew of three — Scott Poteet, Sarah Gillis and Anna Menon — flew in an elliptic orbit that took them 1,400 kilometers ...