One hundred years ago Albert Einstein hypothesized gravitational waves, ripples in space and time. Scientists said they first detected the gravitational waves last Sept. 14. They said the waves were the product of a collision between two black holes 30 times as massive as the Sun, located 1.3 billion light years from Earth. The scientific milestone was achieved using a pair of giant laser detectors in the United States, located in Louisiana and Washington State, capping a long quest to confirm the existence of these waves. The two laser instruments, which work in unison, are known as the Laser Interferometer Gravitational-Wave Observatory (LIGO). They are able to detect remarkably small vibrations from passing gravitational waves. This usher in a new way to explore our universe to hear the cosmos.
They heard two black holes go bump in the Night.