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Globular Clusters: HST Breathes New Life into Old Fossils

Presented by: Jay Anderson (Space Telescope Science Institute)
Category: Education and Outreach   Duration: 1 hour and 30 minutes   Broadcast date: August 03, 2010
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Globular star clusters contain a large number of stars of the same age, made from the same material, and at the same distance. This has allowed them to serve as ideal places to learn about stellar populations, the lives of stars, and the distances between objects in our Galaxy and its neighbors. The understanding gleaned from globulars has made possible many of the current "hot" topics in astronomy, such as star formation, stellar populations in galaxies, and galaxy evolution. In recent years, however, the Hubble Space Telescope has shown that globular clusters are not as simple as we once thought. New discoveries have provided new insights and new questions about how stars form, how galaxies develop, and maybe even what circumstances give rise to massive black holes. Jay Anderson presents an overview of some of the exciting new discoveries HST is making in the exploration of globular clusters.

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