The Moon Has a Black Sky in Broad Daylight
Sunlight can be blazing across the lunar surface while the sky above it stays black. Earth’s blue daytime sky depends on something the Moon barely has: atmosphere.
WTF?
The Ocean Can Make Its Own Light — and Most of That Light Is Blue
Deep underwater, sunlight fades away. Plenty of animals solve the problem by carrying their own chemistry-powered lighting system.
Rogue Waves Are Real — and They Can Be More Than Twice the Size of the Sea Around Them
For centuries they sounded like sailors’ stories. Modern measurements confirmed that unusually large, steep waves can appear with very little warning.