Some asteroids have other asteroids orbiting them.
131
Jupiter has radio storms so strong that they can be picked up and heard by an AM radio.
16
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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The earth travels through space at 660,000 miles per hour.
189
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The population of the Earth has more than doubled since 1950.
151
Mars had an oxygen-rich atmosphere around 4 billion years ago
13