Only 55% of Americans know that the sun is a star.
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
If you were to cry in space, the tears would form a bubble in your eye until it's so big it moves to another spot on your face.
10
The sun is 330,330 times larger than the earth!
190
The light hitting the earth right now is 30 thousand years old.
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Earth is the only planet in our solar system that's not named after a god or goddess.
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