With the recent discovery of the amino acid glycine in the comet dust samples returned to Earth by the Stardust spacecraft, it is becoming a bit more clear how life may have originated on Earth.
To read the full story and post a comment, go to the JPL blog at http://blogs.jpl.nasa.gov/?p=52 .
To read the full story and post a comment, go to the JPL blog at http://blogs.jpl.nasa.gov/?p=52 .