August 19th, 2009
New Limits on Gravitational Waves From the Big Bang
Artists concept of graviational waves. Credit: NASA
The only way to know what the Universe was like at the moment of the Big Bang requires analysis of gravitational waves created when the Universe began. Scientists working with the Laser Interferometer Gravitational-Wave Observatory (LIGO) say their initial investigations of these gravitiation waves have turned up nothing. But that's a good thing. Not detecting the waves provides constraints about the initial conditions of the universe, and narrows the field of where we actually do need to look in order to find them.
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Filed under: Astronomy, Cosmology | 58 Comments »
