One of world’s largest lasers could detect alien warp drives

Scientists have proposed another use for the world’s largest gravitational wave observatory: scanning for the ripples in space-time left in the wake of gargantuan alien spaceships.

Gravitational waves ripple out when objects with mass move through space. Bigger objects — such as planets, neutron stars or black holes — produce more prominent gravitational waves. These space-time ripples were first directly detected in 2015, but since then, scientists have been getting better at spotting the waves as they lap at our cosmic shores. 

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