Our world had oxygen 700 million years earlier than we thought

About 2.3 billion years ago, Earth underwent what is known as the Great Oxidation Event, as early lifeforms photosynthesized enough oxygen that the gas took hold as a dominant part of our atmosphere. This massive shift allowed for the evolution of pretty much all complex life... but its roots go back far earlier than… »9/29/13 7:00pm9/29/13 7:00pm

New sci-fi TV series feature teen aliens, android cops and Alfonso Cuarón

Big sci-fi TV news: Alfonso Cuarón's Believe, J.J. Abrams' new Fringe-esque cop drama and two other new sexy science fiction series have been given the greenlight. From high concept to teen drama, there are four new TV series steeped in sci-fi that could be airing in your homes next year. Here's a run down on what we… »1/28/13 12:10pm1/28/13 12:10pm