Astronomers used the Two-meter Twin Telescope to catch a "see-you-soon" image of the departing asteroid 2024 PT5.

At a headquarters in Kent, Wash., engineers are assembling giant barrel-shaped sections of a rocket and two very different engines designed to make not just the booster but the upper stage of the ...

Elon Musk, as a businessman, is primarily known for three of his many enterprises. One is X, formerly Twitter, nowadays ...

Over the past few weeks, you’ve might have heard somewhere that Earth was about to get a second moon. Now it’s confirmed, ...

Earth's recent "mini-moon" asteroid 2024 PT5 didn't stick around for Thanksgiving, but don't be sad. It will be back... but ...

After almost two months of companionship, Earth has just lost its “mini-moon.” On Monday, the asteroid dubbed 2024 PT5 was ...