Big Bang’s Smoking Gun Found?
Source: news.discovery.com
For the first time, scientists have found direct evidence of the expansion of the universe, a previously theoretical event that took place a fraction of a second after the Big Bang explosion nearly 14 billion years ago.
The clue is encoded in the primordial cosmic microwave background radiation that continues to spread through space to this day.
Scientists found and measured a key polarization, or orientation, of the microwaves caused by gravitational waves, which are miniature ripples in the fabric of space.
Gravitational waves, proposed by Albert Einstein’s General Theory of Relativity nearly 100 years ago but never before proven, are believed to have originated in the Big Bang explosion and then been amplified by the universe’s inflation.
“This detection is cosmology’s missing link,” physicist Marc Kamionkowski, at Johns Hopkins University, told reporters during a webcast press conference on Monday.
“It’s something that we thought should be there, but we weren’t really sure. It has been eagerly sought now for close to two decades,” he said.
Because gravitational waves squeeze space as they travel, they imprint a specific pattern in the cosmic microwave background. Like light waves, gravitational waves have “handedness” that correlates to left- and right-skewed polarizations.
Using a special telescope located at the South Pole, scientists not only detected gravitational waves in the universe’s fossil radiation; they also found that the telltale polarization signals are much stronger than expected.
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Read the full article at: news.discovery.com
READ: The Thunderbolts Project - Why Dispute the Big Bang?
AND: Higgs Boson hunt over: CERN scientists at Large Hadron Collider find ‘God particle’ - Or Did They?
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