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 ...