NASA invented baby food as we know it today.
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If two pieces of metal touch in space, they become permanently stuck together.
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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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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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Earth is the only planet in our solar system that's not named after a god or goddess.
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Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
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There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
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The Sun and Moon appear to be the same size because the moon is 400 times smaller than the Sun, but 400 times closer to Earth.
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