http://onpoint.wbur.org/2013/11/06/planets-space-aliens-earth-mars
The news from space this week gets our attention: There may be 40 billion Earth-like planets in our Milky Way galaxy. Planets like Earth “relatively common,” say the researchers. In the “Goldilocks” zone. Not too hot, not too cold. Forty billion chances for life to get started and evolve on Earth-like planets around Sun-like stars. Wow. Earth 2.0. And we thought we were special. Well, around here we are. The closest near-Earth – 12 light years away. And yet, just the idea of a single twin or sibling out there is amazing. Up next On Point: Maybe we are not alone. Contemplating Earth 2.0.
– Tom Ashbrook
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