Space.com #Lonely Planets: Alien ‘Hot Earths’ Have Few Friends 19 October 2016 fborgosano Leave a comment Share: Hot Earths — scorched, Earth-size worlds that are closer to their stars than Mercury is to the sun — may often be lonely planets, either far removed from any other worlds or the only planets in their systems, a new study finds. from Space.com ift.tt/2e8aG0v Share: