* Jupiter is known as the dumping ground for our solar system, as a large percentage of asteroids are pulled in by Jupiter's gravity.
* There are now 4 dwarf planets in the Solar System: Ceres, Pluto, Eris and Makemake.
* As space has no gravity, pens won't work!
* The term "astronaut" is derived from the Greek words ástron, meaning "star", and nautes, which means "sailor". So, the word astronaut means star sailor!
* Red Dwarf stars that are low in mass can burn continually for up to 10 trillion years!
* The first living mammal to ever go into space was a dog named "Laika" from Russia.
* Mercury's days are twice as long as it's year!
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