Trilobites: It’s Cold Outside, but Earth Is at Its Closest Approach to the Sun Our planet’s elliptical orbit doesn’t affect winter or summer temperatures. But some astronomers wonder whether it’s a factor in why life survives. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Alien life unlike anything found on Earth could exist on PlutoWater was on Mars for hundreds of millions of years – sufficient time for ALIEN evolutionDonald Trump Picks Scott Pruitt, Ally of Fossil Fuel Industry, to Lead E.P.A.1 Patient, 7 Tumors and 100 Billion Cells Equal 1 Striking RecoveryNasa gets closer than ever before to Saturn in STUNNING new imagesGoodbye handset - humans can now play computer games using only their BRAIN