Astronomer Percival Lowell believed that he was the first person to observe canals on Venus, but because of a faulty adjustment of the eyepiece on his telescope, he was in fact looking at the blood vessels in his own eye.
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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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According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
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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 two pieces of metal touch in space, they become permanently stuck together.
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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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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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In the last 7 years, humanity has discovered 43 potentially habitable planets.
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