PIA00284: Mars Life? - Microscopic Tube-like Structures


Mars Life? - Microscopic Tube-like Structures

Caption:

This electron microscope image is a close-up of the center part of photo number S96-12301. While the exact nature of these tube-like structures is not known, one interpretation is that they may be microscopic fossils of primitive, bacteria-like organisms that may have lived on Mars more than 3.6 billion years ago. A two-year investigation by a NASA research team found organic molecules, mineral features characteristic of biological activity and possible microscopic fossils such as these inside of an ancient Martian rock that fell to Earth as a meteorite. The largest possible fossils are less than 1/100th the diameter of a human hair in size while most are ten times smaller.

Background Info:

A NASA research team of scientists at the Johnson Space Center and at Stanford University has found evidence that strongly suggests primitive life may have existed on Mars more than 3.6 billion years ago. The NASA-funded team found the first organic molecules thought to be of Martian origin; several mineral features characteristic of biological activity; and possible microscopic fossils of primitive, bacteria-like organisms inside of an ancient Martian rock that fell to Earth as a meteorite. This array of indirect evidence of past life will be reported in the Aug. 16 issue of the journal Science, presenting the investigation to the scientific community at large to reach a future consensus that will either confirm or deny the team's conclusion.

Cataloging Keywords:

Name Value Additional Values
Target Mars Earth
System Mars Earth
Target Type Planet Earth
Mission Antarctic Meteorite Location and Mapping Project (AMLAMP)
Instrument Host
Host Type
Instrument
Detector
Extra Keywords Grayscale
Acquisition Date
Release Date 1996-08-09
Date in Caption
Image Credit NASA/JSC/Stanford University
Source photojournal.jpl.nasa.gov/catalog/PIA00284
Identifier PIA00284