Photos and videos of astronauts on the ISS show them floating around, but saying there's zero gravity isn't fully accurate.

Gravity isn’t uniform everywhere on Earth. You weigh more at the poles, for instance, than at the equator. Why? This viewer question comes from Ola B. in Egypt. WWE star Hulk Hogan’s cause of death ...

An experiment involving artificial organs is just one way researchers are trying to capitalize on the weird ways low-gravity environments affect the human body. There's a good reason why astronauts ...

It's been 286 days since astronauts Sonny Williams and Butch Wilmore have felt the pull of Earth's gravity. Gravity is really, really tough, tough, learning to live with it, but also without it. Our ...