Add Yahoo as a preferred source to see more of our stories on Google. Whether you use a hole in the ground or a fancy gold-plated toilet, on Earth, gravity pulls your waste down and away from you. For ...

Space is hard. Future astronauts will face a long list of excruciating challenges. These include facing the harsh loneliness of months-long trips away from Earth and exposure to space radiation. Then, ...

Future astronauts on long-duration missions to the Moon or Mars could survive on a protein powder made from “thin air” and urine, the European Space Agency has announced. A new pilot program aims to ...

Outer space has incredible views but the food could use some work. There’s a long and storied history of developing food for space travel. In the early days, astronauts ate and drank liquids and ...