Evidence of Ancient Martian Life in Meteorite ALH84001?
http://planetaryprotection.nasa.gov/summary/alh84001

Dr. David R. Williams, NASA


This NASA website provides a summary of a study led by NASA's David McKay that may provide evidence for past life on Mars. McKay and his team found carbonate globule features on the ALH84001 meteorite that appear to be nanofossils. In addition, secondary mineral phases and hydrocarbons provide further evidence for past life. The website features color photographs as well as links to related web pages.

This resource is referenced here:
Subject: Biology:Astrobiology, Biogeochemistry, Geoscience:Lunar and Planetary Science:Mars:Life on Mars, Biology:Microbiology, Geoscience:Geology:Igneous and Metamorphic Petrology:Geochemistry, Geoscience:Geology:Mineralogy:Biomineralogy, Geoscience:Geology:Geochemistry:Stable Isotopes
Resource Type: Scientific Resources:Overview/Reference Work, Audio/Visual:Images/Illustrations
Grade Level: General Public, College Lower (13-14), Middle (6-8), High School (9-12)
Topics: Biosphere:Microbiology, Astrobiology, Solar system:Mars:Life on Mars, Solid Earth:Mineralogy:Biomineralogy, Biosphere:Biogeochemistry, Solid Earth:Geochemistry:Stable Isotopes, Solid Earth:Petrology:GeochemistryKeywords: nanobacteria, nanobe, nannobacteria