If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

The early departure of Crew-11, leaving Williams as the only US astronaut aboard, also means NASA will be unable to perform ...

NASA says a crew member on the International Space Station is unwell. The agency canceled a planned spacewalk for Thursday ...

Chief Warrant Officer 3 Joseph "Ben" Bailey’s flight path as an Army aviator has expanded – 250 miles straight up.