The comet will make its closest pass to Earth in February, reaching a minimum distance of approximately 93 million miles.

Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be ...

Here's how the astronomical phenomenon influences our planet—from the length of our seasons to the way Earth moves through ...

What was to be SpaceX's final mission of 2025 from California will now be the first of 2026. Here's how to watch a livestream of the delayed launch.

Photos shared by NASA show what life looked like 250 miles above Earth in 2025, including images of hurricanes, the northern ...