In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
More than 20 million meteoroids enter Earth's atmosphere every day.
139
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
Astronauts get taller when they are in space.
224
The temperature of the earth's interior increases by 1 degree every 60 feet down.
115
The ashes of the man who discovered Pluto are currently en route to dwarf planet, scheduled to arrive on the 14th of July, 2015.
11