Mars had an oxygen-rich atmosphere around 4 billion years ago
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Neil Armstrong, the first man to step foot on the moon, carried with him a piece of cloth and wood from the original 1903 Wright Flyer.
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One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
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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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It would take more than 150 years to drive a car to the sun.
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Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
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