Companion planets can increase old worlds’ chance at life

1 agosto 2014

Having a companion in old age is good for people — and, it turns out, might extend the chance for life on certain Earth-sized planets in the cosmos as well. Planets cool as they age. Over time their molten cores solidify and inner heat-generating activity dwindles, becoming less able to keep the world habitable by regulating carbon dioxide to prevent runaway heating or cooling.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/Q1pSCnTaqCw/140801091234.htm

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