Friday, July 11, 2008

Stellar Stuff

Stellar Stuff on SU

Credit: NASA, ESA, L. Bedin (STScI)

Imagine having three clocks in your house, each chiming at a different time. Astronomers have found the equivalent of three out-of-sync "clocks" in the ancient open star cluster NGC 6791. The dilemma may fundamentally challenge the way astronomers estimate cluster ages, researchers said.

Best Of - Celest - Fireworks

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