As part of "What If?" series, Randall Munroe and Henry Reich explain what would happen Earth grew its radius by one ...

It takes the Earth one year to orbit all the way around the sun. But the sun’s path around the Milky Way is much bigger. It ...

From the discovery of gravity to the first mission to defend Earth from an asteroid, here are the most important physics ...

Soon the spacecraft will reach Mars to get a push in its journey to the unknown. NASA says Clipper will make its closest ...

Indeed, the NASA measurements indicate that the ambipolar field enhances the “scale height” of the ionosphere by 271 percent.

On Wednesday, the Expedition 72 team resumed their life science research, focusing on how microgravity impacts space immunity ...

Unless you're an astronaut, you probably don't spend a lot of time thinking about gravity. What would happen if gravity ...

Rocky Foundations There may be a fifth fundamental force of the universe that we haven't documented yet — and, according to ...

The team found that, by including a softer layer at the base of the moon's mantle, it was easier to reproduce the observed ...

The spectacular sight of mountain goats defying gravity on a vertical dam wall in Italy, and all because they are have a ...

The Europa Clipper launched Monday aboard a SpaceX Falcon Heavy rocket propelling it on a six-year journey to reach its ...