Mars moon, Phobus, is spiralling downwards, and will eventually crash into Mars in 100 million years time. The Earth is 7962 miles across. The cliffs on Uranus's moon Miranda are 20,000 metres high. Our Sun is unusual in being a single star. Rubber bands last longer when refrigerated.
Peanuts are one of the ingredients of dynamite.
The National Anthem of Greece has 158 verses. There are more chickens than people in the world. On a Canadian two-dollar bill, the flag flying over the Parliament building is an American flag.