View Full Version : Companion Planet Could Keep Alien Earths Warm In Old Age: Study

2014-Aug-01, 07:10 PM
People are generally social creatures, and in the case of planets that generally is the case as well. Many of these alien worlds we have discovered are in groups of two or more around their parent star or stars. A new study, however, goes a step further and says that a companion planet could actually […]

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