Gravitational Waves Detected -- Simone 113

Einstein came up with this idea of gravitational waves in 1915, his miracle year. Have you ever put your hand in water and whirled your hand around in it? Do you ever see any ripples? Well, it can happen in space also, except it irritates the fabric of space-time, and two black holes are what causes it not a hand. Thanks to LIGO, Laser Interferometer Gravitational Wave Observatory, we now know that gravitational waves are not just a theory.