Humans were not designed for space. Ironically, because we insist on going there anyway, scientists now know from studying astronauts that the lack of Earth’s gravity can wreak health havoc, such as ...

Dragonfly will explore the giant Saturn moon Titan by air, helping scientists learn about the proto-ingredients of life on the satellite's hazy surface.

A cargo resupply spacecraft is on its way back to Earth from the International Space Station, where it will make a fiery reentry Saturday, March 14.

The uncrewed Cygnus XL vehicle is expected to burn up during a fiery reentry. It is carrying several thousand pounds of trash from the station to be destroyed upon reentry. The spacecraft delivered 11 ...