An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
The Earth gets 100 tons heavier every day due to falling space dust.
673
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Summer on Uranus lasts for 21 years.
358
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
It 'snows' metal on Venus.
13
Saturn's moon, Mimas, not only looks like the Death Star, it also has a Pac Man heat signature.
15