Science news of the past week (4-19-09)

Large galaxies with very young stars

It’s not supposed to happen that way. Large galaxies are presumed to have reached their present size only after a significant period of time, so they should also contain many old stars. But a group of 15 large galaxies have now been identified, and the stars in them appear to be mostly quite young.

References: KISSing Galactic Cousins Break the Mold

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