Even most rocket scientists would rather avoid hard math when they don't have to do it. So when it comes to figuring out ...

The Odysseus lunar lander fired its main engine for six minutes and 48 seconds Wednesday, putting the spacecraft into a 57-mile-high orbit around the moon and setting the stage for a landing try ...

The formation of the Moon billions of years ago is cloaked in mystery. Most astronomers believe the young Earth, still cooling off from its formation, was struck by a mars-sized body called Theia, ...