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
The light hitting the earth right now is 30 thousand years old.
163
Summer on Uranus lasts for 21 years.
358
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
In 1859, the largest known geomagnetic storm struck the Caribbean, causing an aurora and telegraphs could even operate without a power source.
25
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10