It 'snows' metal on Venus.
13
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Some asteroids have other asteroids orbiting them.
131
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
It would take more than 150 years to drive a car to the sun.
569
The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131