The leading explanation for all of these mysteries is known as the giant impact hypothesis. According to this story, when the ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

NEW YORK (AP) — Venus will pass between the Earth and sun on Saturday during what’s called an inferior conjunction. But don’t ...

However, not all of those celestial bodies survived, and a new analysis of a the meteorite NWA 15915 shows that it likely originated from a world that was similar to Mercury in its composition—but not ...

The first total lunar eclipse in more than two years lit up the sky last night as humanity, forever fascinated with the Earth ...

The Blue Ghost lunar lander, operated by Firefly Aerospace from Texas, became the first commercial spacecraft to image an eclipse from the moon.

The spacecraft carried out the longest commercial operation on the moon to date—and also made history during its rare chance ...

Skywatchers snapped photos of the "blood moon" hovering above North and South America last night. Here's a gallery of images ...

Deimos is the smaller and less photographed of Mars’ moons. This egg-shaped object, only measuring about 7.7 miles in ...