Kids' fossilized handprints may be some of the world's oldest art

Inspiration4’s successful splashdown is just the beginning of private spaceflight for SpaceX

SpaceX's private Inspiration4 astronauts had some toilet trouble in space

The US Air Force considered detonating a nuke on the moon to one-up the Soviets in the late 1950s. Called Project A119, it was concluded there would be no typical mushroom cloud, but the flash would be visible from Earth. The idea was abandoned, in part, because "world opinion [would be] negative.”