It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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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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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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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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Summer on Uranus lasts for 21 years.
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