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

Here’s what you will learn when you read this story: Gravitational anomalies detected by NASA and the German Aerospace Center’s GRACE satellites confused scientists for years. These anomalies are ...

You wouldn’t personally notice it, though. While the wobble is pretty big, it takes a long time to play out. Over a human lifetime, the effect is so small as to be unnoticeable. But over humanity’s ...

In microgravity, flames form a spherical shape due to the absence of buoyancy-driven convection. Meanwhile, flames are ...