More than 20 million meteoroids enter Earth's atmosphere every day.
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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.
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It takes eight and a half minutes for light to get from the sun to earth.
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If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
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Lightning strikes about 6,000 times per minute on this planet!
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An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
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