For so long, scientists were trying hard to find the evidence for Gravitational waves, predicted by Einstein over a 100 years ago, in his “Theory of Relativity”. Finally, scientists at LIGO( Laser Interferometer Gravitational Waves Observatory) detected Gravitational Waves.
Scientists estimate, about 1.3 billion years ago, two black holes collided at half the speed of light. Which resulted in Gravitational waves. Detector at LIGO detected these waves.
LIGO has two identical detectors, one located in Livingston, Louisiana, the other in Hanford, Washington. These Detectors can detect even very little vibrations from Gravitational Waves.
This discovery changes our perspective on how we see the Universe.