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
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
Pluto is smaller than Russia.
9
It would take more than 150 years to drive a car to the sun.
569
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
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46