Scientists have uncovered new information about the Earth's core: it may not be completely solid. Instead, its center may be more malleable than expected and has changed shape in recent years. These ...

Learn how the Moon’s phases form, why it changes shape in the sky each night, and what each stage — from new moon to full moon — actually means.

As of Wednesday, Oct. 9, the moon phase is Waning Gibbous. Tonight, only 92% will be lit up, according to NASA's Daily Moon ...

Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...

The bottom half of the world, known as the Southern Hemisphere, is about to be treated to a partial solar eclipse that won't ...

A giant S-shape structure, around 10 times wider than Earth, recently appeared in the center of the sun, moments before our ...

Since its discovery, astronomers have been frantically trying to gather as much information as they can about the newest interstellar interloper dubbed 3I/ATLAS. It's been challenging, but they've ...