Wednesday, October 23, 2013

This Very Old Cosmic Light Has A Bend To It

This Very Old Cosmic Light Has A Bend To It:
Artist's impression of how huge cosmic structures deflect photons in the cosmic microwave background (CMB). Credit: ESA and the Planck Collaboration
Artist’s impression of how huge cosmic structures deflect photons in the cosmic microwave background (CMB). Credit: ESA and the Planck Collaboration
Leftover radiation from the Big Bang — that expansion that kick-started the universe — can be bent by huge cosmic structures, just like other light that we see in the universe. While the finding seems esoteric at first glance, scientists say the discovery could pave the way for finding a similar kind of signal that indicate the presence of gravitational waves in the moments after the universe was born.
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Read the rest of This Very Old Cosmic Light Has A Bend To It (195 words)

© Elizabeth Howell for Universe Today, 2013. |Permalink |No comment |
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