Perspective

Galactic Paleontology

Science  08 Jul 2011:
Vol. 333, Issue 6039, pp. 176-178
DOI: 10.1126/science.1207392

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Abstract

Individual low-mass stars have very long lives, comparable to the age of the universe, and can thus be used to probe ancient star formation. At present, such stars can be identified and studied only in the Milky Way and in the very closest of our neighboring galaxies, which are predominantly small dwarf galaxies. These nearby ancient stars are a fossil record that can provide detailed information about the physical processes that dominated the epoch of galaxy formation and subsequent evolution.

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