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An optical image of the California Nebula, a giant cloud of gas and dust whose total mass is nearly 100,000 solar-masses. Despite its huge size, this nebula is among the least efficient in making stars. A new paper explains the paradoxically low number of new stars as due to the lack of dense material in this object.
Credit: Caltech, Palomar Observatory, Digitized Sky Survey
Low Resolution Image (jpg)
Credit: Caltech, Palomar Observatory, Digitized Sky Survey
Low Resolution Image (jpg)
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