NASA Discovers Kepler 186 f, An Earth Size Planet in Habitable Zone | Educating Humanity

NASA Discovers Kepler 186 f, An Earth Size Planet in Habitable Zone | <b><i><a href="http://www.educatinghumanity.com">Educating Humanity</a></i></b>





SM has a bumper sticker i envy

"EARTH FIRST,we'll screw up the other planets later."