View Full Version : Globular Clusters and the Age-Metallicity Relation

2011-Jun-24, 11:40 PM
  Globular Clusters have a story to tell. These dense clumps of thousands of stars are relics of the early history of our galaxy, preserving information of the galaxy’s properties from their formation. Knowing this, astronomers have used globular clusters for nearly 30 years to probe how our galaxy has evolved. New observations from Hubble, [...]

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