Back on Earth, balance issues could arise. Continued monitoring showed that the brain orientation of the astronauts in the study slowly returned to normal. For those with the longest stays, ...

One particularly well-known fact about the moon is that it doesn't have much of a magnetosphere to speak of. There's no blanket to protect it from the solar wind ravaging its surface, blowing away its ...

As we explore more of the universe, the physical impacts of living in microgravity continue to be one of the primary ...

The space-faring mice spent about 28 days in those conditions before returning to Earth in April. Mortreux and her colleagues ...

Mercury, Venus, and Mars sit within the same general neighborhood as Earth, yet each has followed a radically different path.

But, just as home cooking is cheaper than getting takeout, when it comes to more permanent settlements, this kind of supply voyages would be prohibitively expensive: we will need to grow our own food ...

It's well known that spaceflight causes muscle atrophy and other biological changes in reduced gravity, and especially in ...

Scientists are searching for evidence of microbial life left behind in these mineral deposits.

Previous studies found two of the closest planets outside the Solar System around this star, but missed the really exciting ...

A collision between planetesimals can produce the observed mass and heat, and even match the odd brightness fluctuations, ...

A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

Bacteria and the viruses that infect them are perpetually at war. Their deadly clashes push both kinds of microbes to evolve ...