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Ripples in spacetime? Neil deGrasse Tyson and comedian Harrison Greenbaum explore black hole collisions, quantum tricks, and how gravitational waves can help us uncover the early universe with MIT physicist and LIGO researcher Nergis Mavalvala.

The estimated the blast was around 10 megatons of TNT equivalent, about 500 times as powerful as the bomb dropped on Hiroshima, Japan, during World Word II. the wave looked like a ripple produced by dropping a stone in a pond.