In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
It 'snows' metal on Venus.
13
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15
Pluto is smaller than Russia.
9
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277