Saturday, January 11, 2014

Brown Dwarfs Detected

A brown dwarf is not like a white dwarf: on the death march of a real star. A brown dwarf is a star too small to kickstart full fusion, too small to emit light, but big enough to emit energy (as infrared) for billions of years and fantastic enough to have liquid iron falling from the sky as rain. A Canadian team is using the Spitzer IR Space Telescope to study them.

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