Ouch. "Ouch" is an incredibly beautiful onomatopoeia that means very simply: "hey, that hurt me".
Astronomers are calling it a "chirp". The sound of two massive black holes making love, an affair to remember, amidst great shudders of gravitational energy, space and time became distorted and a new black hole sixty times as heavy as our sun was formed, millions of galaxies away, sending rippling waves across the cosmos, and one such wave landed in the hands of Marco Drago while sitting in front of his computer at the Albert Einstein Institution in Hanover Germany.
Marco is a member of the LIGO Scientific Collaboration who's job is to record Gravitational Wave Phenomena. He is a gravitational wave hunter. He heard the ecstatic "ouch" of a celestial merger a billion years ago and an entirely new kind of astronomy was born: the language of the "cosmic orchestra".
There are now two ways of observing the cosmos. The way most explored by astronomers so far with any empirical evidence has been by calculating shifts in the electromagnetic spectrum emitted by a celestial body. If you've ever wondered why it appears that stars in the sky are flickering between different colors, then you have good eyes. Those flickering lights have begun to tell the story of other galaxies and scientists have begun deciphering this language.
Now there is a new language, we have a new way and it is by listening with a giant wave recording mechanism in the shape of an L. We can now begin to hear what the Universe is saying by measuring gravitational wave phenomena passing through this large L shaped recording machine. This is just the beginning as scientists can hardly determine even the speed of a wave passing through stating that "the waves seemed to propagate at the speed of thought".