Astronomers have discovered the first four exoplanets of 2012

2011 was a great year in the search for exoplanets, and it looks like 2012 is shaping up to be pretty fruitful, as well. Yesterday morning, just four days into the new year, astronomers announced the discovery of four massive new alien worlds, each one orbiting a star of its own. » 1/05/12 7:20am 1/05/12 7:20am