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Cold planet/brown dwarf discovered
"It is remarkable that even after many decades of studying the sky, we
still do not have a complete inventory of the sun's nearest neighbors," http://www.nasa.gov/jpl/wise/spitzer.../#.U1rZx15HuIk How little we know actually. This thing is 7 ly away only. Dark, cold, invisible. Is it one of the wandering "lost" planets that were announced some time ago? In any case it is dark matter :-) it doesn't shine very much at a temperature of -48C to -13C. It is old, since it has cooled a lot. This is an interesting discovery. |
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