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Episode 173: HubbleWatch for July 2008

Play Jul 30•5:20

A cluster of stars boasts no less than three different ages. Open clusters of stars are usually easy to date, but this one is confusing scientists with mixed messages. Scientists have new information about the bars of stars that develop in the centers of galaxies. Barred spiral galaxies are common in today's cosmos, but were scarce in the universe's early history. What's My Age? Mystery Star...

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