Scientists say they have extraordinary new evidence to support a Big Bang Theory for the origin of the Universe.
Researchers believe they have found the signal left in the sky by the super-rapid expansion of space that must have occurred just fractions of a second after everything came into being.
It takes the form of a distinctive twist in the oldest light detectable with telescopes.
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Gravitational waves from inflation put a distinctive twist pattern in the polarisation of the CMB
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http://www.bbc.com/news/science-environment-26605974