The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
There's a mysterious dwarf planet between Mars and Jupiter called 'Ceres' which has never been visited by spacecraft or photographed in detail, however, Earth-bound telescopes reveal a large bright shining spot on the surface of this planet, the origin and nature of which are unknown.
5
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
Pluto is smaller than Russia.
9
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Jupiter's moon Ganymede, is larger than the planet Mercury!
149
Only 55% of Americans know that the sun is a star.
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