MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
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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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On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
NASA invented baby food as we know it today.
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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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There are more nerve cells in the human brain than there are stars in the Milky Way.
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