USA: Gravitational waves from black holes discovered

Scientists confirmed that gravitational waves in space do exist, Laser Interferometer Gravitational-Wave Observatory (LIGO) officials making the announcement at a press conference in Washington D.C., Thursday. The breakthrough discovery could lead to a more thorough understanding of the Big Bang theory, with scientists saying that the findings could revolutionise the study of astronomy.
Executive Director of LIGO David Reitze told his audience that the gravitational waves were detected by LIGO" which he called "the most precise measuring device ever built."
"Now it took us months of careful checking, analysis, looking at every piece of data to make sure that what we saw was not something that wasn't a gravitational wave but in fact it was a gravitational wave," confirmed Reitze.
Gravitational waves are one of the predictions of Einstein’s Theory of General Relativity, and while their existence has been inferred, LIGO’s discovery is the first concrete evidence that they exist. The waves are ripples in the fabric of space and time, coming from supermassive collisions, as seen in LIGO’s findings with the collision of two black holes.
Reitze concluded by stating "It's 400 years ago Galileo turned a telescope to the sky and opened the era of modern observational astronomy. I think we are doing something equally important here today. I think we are opening a window onto the universe, the window of gravitational wave astronomy."