There's a micromoon coming up. That's when the full moon will look slightly smaller and dimmer. But the change may be tricky ...

NASA will kick off its 31st annual Rover Competition this week in Alabama, giving students from around the world a chance to ...

WASHINGTON — April's skywatching events are in full this month as stargazers will be able to see a pink moon, a meteor shower ...

We always said it would only take the two of us and the moon. It took more than that.

These are some of the best American flag pictures from our readers Incredible American flag pictures that fill you with pride ...

A restive Philippine volcano has erupted briefly on a central island, sending a 2.4-mile plume of ash and debris into the sky ...