''On 14 September 2015, the universe's gravitational
waves were observed for the very first time. The
waves, which were predicted by Albert Einstein a
hundred years ago, came from a collision between
two black holes. It took 1.3 billion years for the
waves to arrive at the LIGO detector in the USA.
The signal was extremely weak when it reached Earth, but is already
promising a revolution in astrophysics. Gravitational waves are an
entirely new way of observing the most violent events in space and
testing the limits of our knowledge.LIGO, the Laser Interferometer Gravitational-Wave Observatory, is a collaborative project with over one thousand researchers from more than twenty countries. Together, they have realised a vision that is almost fifty years old. The 2017 Nobel Laureates have, with their enthusiasm and determination, each been invaluable to the success of LIGO. Pioneers Rainer Weiss and Kip S. Thorne, together with Barry C. Barish, the scientist and leader who brought the project to completion, ensured that four decades of effort led to gravitational waves finally being observed..''
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Cosmic chirps..
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