interesting...

http://www.nasa.gov/home/hqnews/2010/nov/HQ_M10-167_Astrobiology.html

and here's a related link to "spice" things up a bit.

edit: a guy on coast to coast just said he thinks that they're going to announce that we've found living organisms that use arsenic as the basis for life. this will make the odds of life elsewhere much more possible...

arsenic confirmed

http://www.nasa.gov/topics/universe/features/astrobiology_toxic_chemical.html