Tuesday, January 29, 2008
TWINKLE TWINKLE LITTLE STAR ! 2 MILLION LIGHT YEARS AWAY
* Westerlund 2: A Stellar Sight
A new Chandra X-ray Observatory image shows Westerlund 2, a young star cluster with an estimated age of about one or two million years. Until recently little was known about this cluster because it is heavily obscured by dust and gas. However, using infrared and X-ray observations to overcome this obscuration, Westerlund 2 has become regarded as one of the most interesting star clusters in the Milky Way galaxy. It contains some of the hottest, brightest and most massive stars known.
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