More than 20 million meteoroids enter Earth's atmosphere every day.
139
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
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 Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
13
The Earth gets 100 tons heavier every day due to falling space dust.
673
Jupiter is bigger than all the other planets combined.
254
If two pieces of metal touch in space, they become permanently stuck together.
808