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China's bold proposal to zap space junk from Earth's orbit with lasers


China's bold proposal to zap space junk from Earth's orbit with lasers Since 1957, humans have been polluting the Earth’s orbit with bits of debris, known as space junk. There are currently around 20,000 fragments of space junk orbiting the Earth. Pieces of old satellites, used rocket stages and fragments from collision, erosion and disintegration are all floating up there, reaching speeds of up to 17,500 miles an hour. Ideas for getting rid of this dangerous junk range from gathering it with giant nets to sending it out of Earth’s orbit using magnets.    More



(Source: Wired.co.uk - Jan 15)

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