Explosion of galaxy formation lit up early universeQuicklink submitted by Kyle McDermott Permalink
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|The South Pole Telescope recorded temperature fluctuations in the cosmic microwave background, the light left over from the Big Bang, to study the period of cosmological evolution when the first stars and galaxies formed early in the history of the universe. The images shows variations in millionths of a degree Kelvin. New data from the South Pole Telescope indicates that the birth of the first massive galaxies that lit up the early universe was an explosive event, happening faster and ending sooner than suspected. Extremely bright, active galaxies formed and fully illuminated the universe by the time it was 750 million years old, or about 13 billion years ago. Most astronomers think that early stars came to life in massive gas clouds, generating the first galaxies. The energetic light pumped out by these stars is thought to have ionized the hydrogen gas in and around the galaxies...|
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