It 'snows' metal on Venus.
13
Summer on Uranus lasts for 21 years.
358
From the nitrogen in our DNA, to the calcium in our teeth, the iron in our blood, to the carbon in our apple pies - all were made in the interiors of collapsing stars; we're all made of stardust.
22
When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the Milky Way for the first time.
31
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
NASA invented baby food as we know it today.
7
Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
12