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Episode 105: Globular Cluster Baby Booms

Play Jun 21•4:28

Globular clusters are tightly packed groups of hundreds of thousands to millions of stars. Based on observations of their stars, it seems that the clusters formed when the universe was young, and that the stars within them formed simultaneously. New observations with the Hubble Space Telescope suggest at least one globular cluster has had several episodes of star formation, billions of years ag...

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