Astronomers have discovered a panoply of new moons orbiting Saturn, bringing the ringed gas giant's total up to 274 moons—far ...

The sheer number of objects suggests scientists will soon have to grapple with what counts as a moon versus what’s just a ...

Firefly Aerospace landed a craft safely last week, a first for a private company. But Intuitive Machines’ mission ended when its lander wound up on its side in a crater.

In North America, the total lunar eclipse will start around 12:55 a.m. ET on Friday. Telescopes and binoculars aren't ...