Navigation Links
New model is proposed to explain absence of organic compounds on surface of Mars
Date:6/10/2010

New Rochelle, June 10, 2010The ongoing search for evidence of past or present life on Mars includes efforts to identify organic compounds such as proteins in Martian soil, but their absence to date remains a mystery. A new theory to explain what happens to these carbon-based molecules is presented in an article published in Astrobiology, a peer-reviewed journal published by Mary Ann Liebert, Inc. The article is available free online at www.liebertpub.com/ast.

"There may be no 'safe haven' for these organic molecules on Mars," conclude Ilya Shkrob, Sergey Chemerisov, and Timothy Marin, from Argonne National Laboratory and Benedictine University, in Illinois, in their article entitled "Photocatalytic Decomposition of Carboxylated Molecules on Light-Exposed Martian Regolith and its Relation to Methane Production on Mars."

Unlike on Earth, where plants and other organisms convert carbon dioxide and water into organic compounds via photosynthesis, the authors propose that the opposite happens on the surface of Mars. The iron oxides that make up Martian soil and give the planet its distinctive red color are photocatalysts. They use energy from ultraviolet light absorbed through the thin Martian atmosphere to oxidize carbon-containing organic molecules trapped in soil particles, converting them to carbon dioxide and gases such as methane.

The authors present study data to support this model and to explain why it might not be realistic to rely on the discovery of proteins, amino acids, and other carbon-containing compounds in the upper soil layers of Mars to determine whether life forms are or have been present on the planet.

"This is an interesting result and may be an important step in solving the enduring mystery of organics on Mars," says Christopher P. McKay, Senior Editor of Astrobiology and Research Scientist at NASA Ames Research Center. "We see organics in many places
'/>"/>

Contact: Vicki Cohn
vcohn@liebertpub.com
914-740-2156
Mary Ann Liebert, Inc./Genetic Engineering News
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Clemson engineers to create model underground energy-storage facility
2. Colorado State University scientist simplifies aerosols for modeling
3. Model developed for manipulating vitamin D levels in calves
4. Genetics Society of America to host Model Organisms to Human Biology Meeting, June 12-15, 2010
5. Study paves way for new biofuels models, technologies
6. Species distribution models can exaggerate differences in environmental requirements
7. Modeling reef ecosystems focus of workshop
8. Model predicts shifts in carbon absorption by forest canopies
9. New mathematical model helps biologists understand how coral dies in warming waters
10. GENETICS 2010: Model Organisms to Human Biology Meeting
11. Stem cells used to model infant birth defect
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New model is proposed to explain absence of organic compounds on surface of Mars
(Date:7/25/2014)... The routine use of a molecular testing panel ... performing the correct initial surgery for patients with ... University of Pittsburgh Cancer Institute (UPCI), partner with ... Multidisciplinary Thyroid Center and other diagnostic testing agencies, ... initial surgery by 30 percent, according to the ...
(Date:7/24/2014)... Scientists at The New York Stem Cell Foundation ... creating a viable cell replacement therapy for multiple ... For the first time, NYSCF scientists generated induced ... of patients with primary progressive multiple sclerosis and ... these stem cells into becoming oligodendrocytes, the myelin-forming ...
(Date:7/24/2014)... 24, 2014 /PRNewswire-iReach/ -- The Geneva Healthcare Suite, an ... has cut emergency room wait times by an average ... Medical Center, according to a recent study published in ... are using the suite to access data from incoming ... "Using Geneva,s technology platform we have been ...
Breaking Biology News(10 mins):Test increases odds of correct surgery for thyroid cancer patients 2Test increases odds of correct surgery for thyroid cancer patients 3NYSCF scientists one step closer to cell therapy for multiple sclerosis patients 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 2UC San Diego Medical Center Cuts Average ER Wait Time by 92 Minutes using the Geneva Healthcare Suite 3
... heat or electricity, has to be used right away. It ... can be rather complicated. Creating solar cells capable of producing ... to say fuel, is therefore the future challenge of solar ... on a catalyst that imitates and improves what nature has ...
... 2013 A new study from the Department of Nutrition, ... beverages (SSBs) are primarily responsible for higher caloric intakes of ... not (on a given day). In addition, SSB consumption is ... are published in the American Journal of Preventive Medicine ...
... chemicals and a stagnant atmosphere were behind what became ... new NASA study finds. Even when both poles ... the Arctic,s ozone depletion tends to be milder and ... key ingredients needed for ozone-destroying chemical reactions chlorine from ...
Cached Biology News:Catalysts that produce 'green' fuel 2Kid's consumption of sugared beverages linked to higher caloric intake of food 2NASA pinpoints causes of 2011 Arctic ozone hole 2NASA pinpoints causes of 2011 Arctic ozone hole 3
(Date:7/24/2014)... 24, 2014 SRI International has been awarded ... Institute of Allergy and Infectious Diseases (NIAID), part of ... of potential therapies for HIV infection and AIDS. The ... and AIDS and the complications and opportunistic infections associated ... sexual transmission of HIV. According to ...
(Date:7/24/2014)... 2014 Deep Research Report on Global ... and in-depth research report on Potassium Sulphate ... information, including its definition, classification, application, and industry ... the international market analysis, including China’s domestic market ... environment & economic situation analysis, the influence of ...
(Date:7/24/2014)... July 24, 2014 1000 balances – ... input on customers’ weighing needs and expertly narrows down ... of balances, scales or even terminals. , First, ... smallest weight (or select readability instead) and define the ... additional selection criteria narrows down the list to models ...
(Date:7/24/2014)... July 24, 2014  Spherix Incorporated (SPEX) -- an ... monetization of intellectual property, today announced that the Company ... June 30, 2014 on Monday, August 18, 2014 for ... a.m. ET on Monday, August 18, 2014 to discuss ... the company,s CEO, Anthony Hayes . ...
Breaking Biology Technology:National Institute of Allergy and Infectious Diseases Awards SRI International Contract to Study New Therapies for HIV and AIDS 2National Institute of Allergy and Infectious Diseases Awards SRI International Contract to Study New Therapies for HIV and AIDS 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 2Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 3Potassium Sulphate Market & SHMP Industry 2014 (Global, China) Analysis Now Available at DeepResearchReports.com 4Spherix Schedules Shareholder Update Call 2
... Leum Software Solutions, Inc. has announced an exclusive ... Ascend retail management software package. Trek and Leum Software intend ... with additional tools and features to help them manage their ... ways to make our dealers more successful. In the future, ...
... but incorporate software-based components (such as microprocessors or microcontrollers) ... importance of protecting that software. The software may not ... of the product, but a feature nonetheless and a ... ,For example, many vehicles, such as motorcycles, trucks and ...
... - To complement the two- and four-port Ethernet cards ... has released software for Apple G4 and G4 servers ... with more bandwidth. , ,The company is the first to ... Mac platforms. In March, it expanded from the G5 to ...
Cached Biology Technology:Beyond the screws and gears: Protecting your products by protecting your software 2Small Tree boosts bandwidth for Apple G4 and G5 servers 2
... GCpro Taq DNA Polymerase is a ... advantages for all PCR applications. GCpro Taq ... clone expressed in E. coli, containing the ... The enzyme includes a highly processive 5'-3' ...
Ps-Aeruginosa (IgG) -Ab EIA Sample Size: 100 l...
...
Automated -80° C sample library for microplates and cryotube racks in SBS format; for integration into automated processes....
Biology Products: