alexa Life on Mars? The Viking labeled release experiment.
General Science

General Science

Journal of Astrobiology & Outreach

Author(s): Levin GV, Straat PA, Levin GV, Straat PA

Abstract Share this page

Abstract Viking radiorespirometry ("Labeled Release" [LR]) experiments conducted on surface material obtained at two sites on Mars have produced results which on Earth would clearly establish the presence of microbial activity in the soil. However, two factors on Mars keep the question open. First, the intense UV flux striking Mars has given rise to several theories postulating the production of highly oxidative compounds. Such compounds might be responsible for the observed results. Second, the molecular analysis experiment has not found organic matter in the Mars surface material, and therefore, does not support the presence of roganisms. However, sensitivity limitations of the organic analysis instrument could permit as many as one million terrestrial type bacteria to go undetected. Terrestrial experiments with UV irradiation of Mars Analog Soil did not produce Mars type LR results. Gamma irradiation of silica gel did produce positive results, but not mimicking those on Mars. The life question remains open.
This article was published in Biosystems and referenced in Journal of Astrobiology & Outreach

Relevant Expert PPTs

Recommended Conferences

  • 6th International Conference on Earth Science and Climate Change
    September 18-19, 2017 Hong Kong
  • 5th International Conference and Exhibition on Mechanical & Aerospace Engineering
    October 02-04, 2017 Las Vegas, Nevada, USA
  • 2nd International Convention on Geophysics and Geotechnics
    November 8-9, 2017 Las Vegas, Nevada, USA

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords