'Ultra-primitive' particles found in comet dust Washington, D.C.—Dust samples collected by high-flying aircraft in the upper atm...

NASA/JPL Fetched from a faraway comet, distinctive amino acids Philadelphia Inquirer Amino acids have also turned up in meteorites - and r...

NASA Researchers Make First Discovery of Life's Building Blocks in Comet http://www.nasa.gov/mission_pages/stardust/news/stardust_amino_...