NASA did not identify the crew member or provide details on the medical concern, citing privacy issues in a brief blog post.

Astronauts may be exposed to the equivalent of 120 chest X-rays over 3 months. As two NASA astronauts gear up for a months-long unplanned stay on the International Space Station (ISS), they may also be increasing their risk of radiation exposure.

CAPE CANAVERAL, Fla. — Space shuttle Endeavour’s astronauts have tested their flight control systems for Friday’s planned landing. They’ve also ejected a small research satellite into space. Commander Mark Polansky and his crew released a small ...

Four astronauts are about to become the first humans to venture near the moon in more than half a century since NASA's iconic Apollo era ended.

Four astronauts are gearing up to launch to the International Space Station on Wednesday. Their arrival will, at long last, kick off the process of bringing NASA astronauts Suni Williams and Butch Wilmore home to Earth. Williams and Wilmore have been the ...

Humans haven’t traveled to the moon since NASA’s Apollo program ended in 1972, but the Artemis program will soon return humans to the lunar surface, with the first crewed landing currently slated for 2026. Artemis astronauts will aspire to do things ...

When astronauts return from a prolonged visit to space, they are often carried out of their capsules and placed on stretchers. The 'stranded' astronauts Sunita Williams and Butch Wilmore were no exception. Here's why. When you purchase through links on our ...