jan 042013
 
Our Milky Way is Home to at Least 100 Billion Planets

  Look up at the night sky and you’ll see stars, sure. But you’re also seeing planets—billions and billions of them. At least.    That’s the conclusion of a new study by astronomers at the California Institute of Technology (Caltech) that provides yet more evidence that planetary systems are the cosmic norm. The team made [continue reading]