Scientists Discover Dwarf Galaxies Are Stellar Powerhouses

June 21, 2014 11:21 PM

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Dwarf galaxies may be small on the galactic scale, but new data from the Hubble Space Telescope (HST) shows they played a larger role in the development of the early universe than previously anticipated. The bulk of the universe’s stellar population was formed between two and six billion years after the Big Bang; however, we still have new stars forming all across the cosmos. By studying the early universe, astronomers hope to have a clearer picture and better understanding of galaxy evolution.

Hubble’s Wide Field Camera 3 (WFC3) is enabling astronomers to do just that, by observing a small sample of starburst galaxies within a sample of dwarf galaxies from the early universe. Their observations showed that the starburst galaxies were pumping out stars at a furious pace, far exceeding the ...

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