Well like most people thought NASA's announcement was just of a new bacteria that can exist off arsenic. Not very big news to some but for the scientific community this is big news.
It had been thought that without six certain essential elements -- carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur -- life could not exist.
This discovery shows "life-as-we-know-it could be much more flexible than we generally assume or can imagine," says Felisa Wolfe-Simon a NASA biochemist. Here is the video of NASA's announcement from earlier today. Click here >>> http://www.youtube.com/watch?v=urijDWVKVA4