The earth travels through space at 660,000 miles per hour.
189
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The heart of an astronaut actually gets smaller when in outer space.
216
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The light hitting the earth right now is 30 thousand years old.
163
Only 55% of Americans know that the sun is a star.
986
If you went out into space, you would explode before you suffocated because there's no air pressure.
149