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Episode 431: Primitive Galaxies in the Early Universe

Play Jan 10•4:26

What was galaxy formation like in the universe's early days? Astronomers have long wondered, and the Hubble Space Telescope is now helping to answer that question. By examining ever-deeper Hubble exposures, astronomers have identified several galaxies that formed more than 13 billion years ago, when the universe was less than 4 percent of its current age. Hubble Provides First Census of Galax...

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