Scientists Find Evidence of Cosmic Ripples in Big Bang Theory Discovery
Scientists may have found direct evidence proving the expansion of the universe after the Big Bang by locating “cosmic ripples." The Big Bang theory is the scientific explanation for the birth of the universe about 13.8 billion years ago.
Scientists believe that the universe exploded from a tiny speck and hurled itself out in all directions in the fraction of a second that followed, beginning just 10 to the minus 35 seconds (roughly one trillionth of a trillionth of a trillionth of a second) after the universe's birth. Matter ultimately coalesced hundreds of millions of years later into planets, stars, and ultimately us.
And like ripples from a ball kicked into a pond, that Big Bang-fueled expansion caused ripples in the ancient light from that event, light which remains imprinted in the skies in a leftover glow called the cosmic microwave background.
Astronomers using BICEP2, a telescope at the South Pole, say they detected fluctuations in gravitational waves in the so-called cosmic background.
Marc Kamionkowski, a theoretical physicist at JHU, said the detection of the ripples is cosmology’s missing link. “It’s something that we thought should be there, but we weren’t really sure,” he said.
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