Big Bang Afterglow --New Evidence that the Universe has No Center In a new study, researchers rule out a controversial theory that the accelerating expansion of the universe is an illusion. While the findings dont explain the cosmic speed-up, they eliminate one provocative possibility that our planet, solar system and galaxy are at the center of the universe and that there is no dark energy. The 2011 Nobel Prize was awarded for the discovery that the expansion of the universe is accelerating. One leading idea to explain the acceleration is a new, mysterious substance called dark energy, which is thought to make up nearly three-fourths of the energy of the universe. But another alternative is that the Earth, our solar system and Milky Way galaxy are at the center of the universe. That theory violates the standard assumption that the universe has no center, but if true, then cosmic acceleration could be explained without dark energy or any new laws of physics. But Dartmouth College researchers found that this model cant hold up to other observational tests. The sky glows with light left over from the Big Bang, also known as the Cosmic Microwave Background, so they calculated how that glow would be affected. Their findings show that the models prediction is completely contrary to the glow that has been measured. dailygalaxy/my_weblog/2013/11/big-bang-afterglow-new-evidence-that-the-universe-has-no-center.html
Posted on: Thu, 07 Nov 2013 21:20:45 +0000
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