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First hints of gravitational waves in the Big Bang's afterglow

By Krzysztof Bolejko and Alan Duffy

Scientists in the US have announced what they believe is the indirect detection of gravitational waves in the afterglow of the Big Bang.

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Scientists at the Harvard-Smithsonian Centre for Astrophysics in the US have announced overnight what they believe is the indirect detection of gravitational waves in the afterglow of the Big Bang.

The discovery by the Background Imaging of Cosmic Extragalactic Polarisation (BICEP) collaboration, indeed even the rumours of such a discovery, sparked a huge discussion among the scientific community. Why?

As the last untested prediction of Einstein’s Theory of General Relativity, finding gravitational waves is a big deal.

The BICEP discovery provides further indirect evidence for the existence of gravitational waves (the 1993 Nobel Prize in Physics was awarded to Russell Hulse and Joseph Taylor for finding a double pulsar that strongly supported these “ripples” in spacetime).

Secondly, and...

The full text of this article can be purchased from Informit.