In orbit, the astronauts aborted two spacewalks, both under unusual circumstances. Then, on October 25, one of the astronauts was hospitalized due to what NASA called an unspecified "medical issue" ...

Three astronauts with the NASA SpaceX Crew-8 mission-preened and poised today spoke briefly with reporters at a news ...

An image from space of a stranded astronaut is causing worldwide concern. Astronaut Sunita Williams looked noticeably gaunt ...

New photos of astronauts stuck on the international space station without being able to return home has led to health ...

Astronauts face the physical effects of extended high-altitude living, including altered cardiovascular and respiratory functioning. Additionally, space travel can lead to a suppressed immune ...

Sunita Williams’ health is declining due to her extended stay in space, raising concerns among doctors. Dr. Gupta noted that recent images indicate she is suffering from the stresses of high altitude.

Space, the final frontier, is an environment so inhospitable and vast that it could only be compared to traversing the ...

Recently released photos of two NASA astronauts stranded aboard the International Space Station (ISS) have caused health ...

and we've learned a lot about the hazards astronauts face on long missions. However, Mars missions can take years, which presents a whole host of problems, including astronaut nutrition.

Astronauts face a large number of other health risks during their stay in space. In a weightless environment, muscles aren't used as much, which can lead to them weakening and atrophying.

However, the ISS orbits Earth significantly faster than Earth rotates. As the ISS moves in its orbit, astronauts face sunlight for 45 minutes, and then 45 minutes of darkness. This cycle repeats ...