Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
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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Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
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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.
8
If NASA sent birds into space they would soon die; they need gravity to swallow.
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Sound doesn't travel in space.
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