Mars is closer than ever, but the human body isn’t ready. Inside the biological war against radiation, microgravity, and ...

We take a look at what the discovery of liquid water under Mars’ surface could mean, we discover how space affects the human ...

Calls for the US to land astronauts back on the moon before China have been increasingly loud and frequent. But it all hinges on SpaceX’s Starship.

TOKYO >> A new certification aims to promote the development of sophisticated space food needed for long-term stays in space.

A single abdominal CT scan can deliver a blast of radiation equal to 90 chest X-rays. I did not know that when I had one ...

One way that astronauts have been fighting bone loss is through strength training. And they're getting some help with a new machine delivered this week by the shuttle Endeavour, which docked with the ...

Canadian Moon astronaut Jeremy Hansen told Ars Technica that he's hoping to "take a very short nap on the pad." ...

But with that milestone apparently came another: the first astronaut class in 40 years without any Black candidates. The most recent class to not include any Black men or women was group 11 in 1985, ...

He joined the army as a scientist after 9/11. Now, he's leading the charge for military and astronaut nutrition and ...

To understand their activities in space on that first day, Ars spoke with each of the four crew members—Hansen, alongside ...

Blast off and spend 24 hours in space with the astronauts who completed NASA's first ever all-female spacewalk! Christina Koch and Jessica Meir share an intimate look at their out-of-this-world ...