Underwater views of Antarctic jellies are 'a magic portal to another world'

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

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.”

What’s The Magic Crew Number For Astronauts Headed To Mars?