The conflict between the brain's expectation of Earth's gravity and the reality of no gravity causes space motion sickness.

U.S. Navy crews recover the Orion Spacecraft for NASA's Artemis I mission from where it landed in the Pacific Ocean in December 2022. No human astronauts were aboard. (Credit: NASA/Josh Valcarcel) In ...

Study finds that VR headset technology can help astronauts combat space motion sickness after returning to Earth.

About 70% of astronauts will suffer from motion sickness during the first few days of orbital flight, experiencing dizziness, cold sweating, nausea and vomiting, according to a journal article in the ...

With one astronaut hospitalized after a delayed return and another's weight loss the subject of tabloid speculation, it's been a busy month for NASA public relations. In June, a series of issues with ...

After adjusting to microgravity—and getting through a few bouts of vomiting—the astronauts got to work in polar orbit. Reading time 2 minutes Four space rookies are floating in a SpaceX Dragon vehicle ...

Space is not an easy environment to live in. Going to space and living in microgravity for extended periods has a range of effects on the body, from space sickness similar to motion sickness, to ...

Astronaut Sunita Williams, 59, experienced significant weight loss during her 155-day stay on the International Space Station (ISS). Recent photos shared on X (formerly Twitter) have caused widespread ...

The four private space travelers flying around the Earth’s poles this week had a vomit-filled first day in space, according to the man paying for the trip. “The first few hours in microgravity weren’t ...