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Discovery of a New Class of Galaxies Challenges Our Understanding of How Galaxy Formation Works

Narrated by: Mark Schectman
Length: 3 mins
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Dragonfly 44, the dim galaxy about 300 million light years away, doesn’t have very many stars. That's one reason why it wasn’t located until last year when researchers turned their gaze on the edges of the Coma cluster, a large group of about 1,000 galaxies. “Very soon after its discovery, we realized this galaxy had to be more than meets the eye,” Yale astronomer Pieter van Dokkum says. “It has so few stars that it would quickly be ripped apart unless something was holding it together.”

"Discovery of a New Class of Galaxies Challenges Our Understanding of How Galaxy Formation Works" is from smithsonianmag.com, published on August 26, 2016.

©2016 Smithsonian Institution (P)2016 Audible, Inc.

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