10 May 2010, JellyBean @ 3:24 pm

Three spacecraft flying three million miles apart are to fire laser beams at each other across the emptiness of space in a bid to finally prove whether a theory proposed by Albert Einstein is correct.

Physicists hope the ambitious mission will allow them to prove the existence of gravitational waves – a phenomenon predicted in Einstein’s famous theory of general relativity and the last piece of his theory still to be proved correct.

The mission, a collaboration between Nasa and the European Space Agency, will use three spacecraft flying in formation while orbiting the sun, with each housing floating cubes of gold platinum.

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Telegraph

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