In 1543, Nicholas Copernicus proves that the Earth is not the center of the cosmos. The "after-glow" is the Big Bang from 13.7 billion years ago is called the cosmic microwave background (CMB), which is the supporting evidence that the "Big Bang" occurred. But since we can only see as far as light has traveled in that time, we can't actually make out the edge of the universe. After the Big Bang, the universe balloons up at an incredible rate in the process of inflation.
Neil Cornish, a Montana State University professor, is interviewed. Archytas of ancient Greece is the first person known to have ponder the question of whether the universe has an edge. Janna Levin compares the shape of the universe to the 1979 Asteroids game. Jean-Pierre Luminet is interviewed. WMAP of NASA photographs the CMB (cosmic radiation) for five years.
Glenn D. Starkman and Sasha Kashlinsky are interviewed. Dark flow is the attraction of matter in the universe in one direction. Laura Mersini-Houghton advances string theory to explain a multiverse structure from which our universe is born. Mersini-Houghton contends that one universe acts as the Great Attractor of another universe to cause the "dark flow."
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