An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194