Iconocast Logo

Welcome To Iconocast

How to add a URL link from your web site to the Iconocast web sites

Virtual tour of Southern California
blank

 

Recent News and Articles on the Keywords: building blocks + mars + form  Related to the article below (Last Update: 5/5/2008)

NASA funds Mars detector instrument
United Press International - Apr 30, 2008
... signs of past or present life on Mars, analyzing rock and soil samples for organic molecules and amino acids -- the so-called building blocks of life. ...
Rover instrument to sniff out life on Mars
New Scientist (subscription), UK - May 1, 2008
It is named after Harold Urey, who showed how the biochemical building blocks called amino acids might have been produced in the atmosphere of the early ...
Get a Deep Insight Into the World Confectioneries Markets
Market Wire (press release) - Apr 30, 2008
... and Licorice Type II-32 Chocolate Confectionery II-32 Bars/ Blocks/Slabs II-33 Boxed/Assorted II-33 Other Chocolate Confectionery II-33 Solid Chocolates ...
Sonoco Products Shareholders Meeting - Final
Insurance News Net (press release), PA - May 1, 2008
DURA-Block pallet blocks reduces the risk of nail heads puncturing products, being transported. And the increased durability reduces the customers' pallet ...SON
Getting off the street
Detroit Metro Times, MI - Apr 22, 2008
Important people are arguing now whether the revitalized glittering few blocks of Greektown and the area around Comerica Park and Ford Field are enough to ...
Building with DNA
Astrobiology Magazine - Apr 30, 2008
In the rapid and fast-growing world of nanotechnology, researchers are continually on the lookout for new building blocks to push innovation and discovery ...
Television movies for the week of April 20
Pittsburgh Post Gazette, PA - Apr 21, 2008
3 AM (CC) ? Eyes of Laura Mars '78. Faye Dunaway. A New York fashion photographer foresees her friends brutally slain, from the killer's perspective. ...
Source: Google News

[PDF] Nuclear lamins: building blocks of nuclear architecture -
RD Goldman? - Genes & Development, 2002 - goldmanlab.northwestern.edu
... Nuclear lamins: building blocks ... they disrupt the organization of nuclear lamins and
block DNA synthesis ... known as matrix-at- tachment regions (MARs) and scaffold ...
-

Structured system of concepts for storing, retrieving, and manipulating chemical information -
PE van der Vet, NJI Mars - Journal of Chemical Information and Computer Sciences, 1993 - pubs.acs.org
... of parts it cannot be decided whether the parts form a whole ... VAN DER VET AND MARS ...
These building blocks are typed, so that arbitraryx stands for any member of ...

The universal nature of biochemistry. -
NR Pace - Proceedings of the National Academy of Sciences of the …, 2001 - JSTOR
... as to be to Themes that are probably common to life outer boundary was cons everywhere
extend beyond the building tween Mars and Jupiter, n blocks. ...

Evolving building blocks for design using genetic engineering: A formal approach
JS Gero, V Kazakov - Advances in Formal Design Methods for CAD, 1996 - books.google.com
... from a computational viewpoint this form of evolution ... to include general object gram
-mars of types ... A. KAZAKOV where the complex building blocks correspond to ...

Turning automata theory into a hands-on course -
SH Rodger, B Bressler, T Finley, S Reading - Proceedings of the 37th SIGCSE technical symposium on …, 2006 - portal.acm.org
... to build more interesting Turing machines with building blocks. ... the conver- sion
from one form to another. ... examples can be shown with unrestricted gram- mars. ...

An Overview Of The Origin Of Life: The Case For Biological Prospecting On Mars -
JA Hiscox - Earth, Moon, and Planets, 1999 - Springer
... them to a sugar molecule to form the basic ... PROSPECTING FOR BIOGENIC ACTIVITY ON MARS ...
Oparin/Haldane hypothesis would require that the building blocks of life ...

[PDF] Modular Building Blocks for Manned Spacecraft: A Case Study for Moon and Mars Landing Systems -
W Hofstetter, O de Weck, E Crawley - Proceedings of the 15th Annual International Symposium - wiki.developspace.net
... lifetime of the Moon and Mars exploration system ... have a common denominator, and the
building block value is ... case, the penalty function takes the following form: ...

[PDF] Formal Ontology and Information Systems -
N Guarino - Proceedings of FOIS, 1998 - alarcos.inf-cr.uclm.es
... case is not that of a building block going to ... Understanding, Building, and Using
Ontologies: A Commentary to ... In N. Mars (ed.) Towards Very Large Knowledge Bases ...

Computing with form and meaning in architecture
G Stiny - Journal of Architectural Education, 1985 - JSTOR
... 12, what a building block means in a design depends ... that are examples of the same
building type. ... Together shape gram- mars and description functions define and ...

BIOCHEMISTRY: DNA Building Block Reinvented -
AG Murzin - Science, 2002 - sciencemag.org
... of the detection of subsurface water ice deposits on Mars may not be ... based on the
self-assembly of molecular building blocks to form larger functional ...

Source: Google Scholar

Building blocks of life formed on Mars

Washington, DC—Organic compounds contain carbon and hydrogen and form the building blocks of all life on Earth. By analyzing organic material and minerals in the Martian meteorite Allan Hills 84001, scientists at the Carnegie Institution's Geophysical Laboratory have shown for the first time that building blocks of life formed on Mars early in its history. Previously, scientists have thought that organic material in ALH 84001 was brought to Mars by meteorite impacts or more speculatively originated from ancient Martian microbes.

The Carnegie-led team made a comprehensive study of the ALH 84001 meteorite and compared the results with data from related rocks found on Svalbard, Norway. The Svalbard samples occur in volcanoes that erupted in a freezing Arctic climate about 1 million years ago—possibly mimicking conditions on early Mars.

“Organic material occurs within tiny spheres of carbonate minerals in both the Martian and Earth rocks,” explained Andrew Steele, lead author of the study. “We found that the organic material is closely associated with the iron oxide mineral magnetite, which is the key to understanding how these compounds formed.”

The organic material in the rocks from Svalbard formed when volcanoes erupted under freezing conditions. During cooling, magnetite acted as a catalyst to form organic compounds from fluids rich in carbon dioxide (CO2) and water (H2O). This event occurred under conditions where no forms of life are likely to exist. The similar association of carbonate, magnetite and organic material in the Martian meteorite ALH 84001 is very compelling and shows that the organic material did not originate from Martian life forms but formed directly from chemical reactions within the rock. This is the first study to show that Mars is capable of forming organic compounds at all.

The organic material in the Allan Hills meteorite may have formed during two different events. The first, similar to the Svalbard samples, was during rapid cooling of fluids on Mars. A second event produced organic material from carbonate minerals during impact ejection of ALH 84001 from Mars.

“The results of this study show that volcanic activity in a freezing climate can produce organic compounds,” remarked co-author Hans E.F. Amundsen from Earth and Planetary Exploration Services. “This implies that building blocks of life can form on cold rocky planets throughout the Universe.”

“Our finding sets the stage for the Mars Science Laboratory (MSL) mission in 2009,” remarked Steele, who is a member of the Sample Analysis on Mars (SAM) instrument team onboard MSL. “We now know that Mars can produce organic compounds. Part of the mission's goal is to identify organic compounds, their sources, and to detect molecules relevant to life. We know that they are there. We just have to find them.”

###

The research is published in Meteoritics & Planetary Science http://meteoritics.org/index.htm

For more information on the MSL mission and the SAM instrument see http://mars.jpl.nasa.gov/msl/ and http://ael.gsfc.nasa.gov/marsSAM.shtml

This research was funded by NASA SRLIDA, ASTEP, NAI and ASTID programs; the Marshall Scholarship program; and the University of Oxford, Earth Sciences Department and was carried out in collaboration with the Arctic Mars Analog Svalbard Expedition (AMASE) project.

The Carnegie Institution (www.CIW.edu) has been a pioneering force in basic scientific research since 1902. It is a private, nonprofit organization with six research departments throughout the U.S. Carnegie scientists are leaders in plant biology, developmental biology, astronomy, materials science, global ecology, and Earth and planetary science.

 
 
 
Google
Web www.iconocast.com

Search inside Iconocast for the keyword you have in mind.

Iconocast has collected more than 50,000 articles and press releases on health and science.

These are current and most up to date press releases on the subject you are searching.

We collect current health and science press releases daily from more than 5000 research and health institutes. Here is an example : The elderberry way to perfect skin

We believe if you do search inside Iconocast, you will get better results than searching the web alone.

 
 
Continue News With: News4 ; News5 ; News6 ; News7 ; News8 ; News9 ; News9A


ADVERTISEMENT

Iconocast is about learning and teaching without borders; we offer eMarketing, Internet Advertising, Internet Marketing, Search Engine Optimization, Search Engine Marketing, Online Branding, and eMarketing News Services.

 

Iconocast Home Page

Contact Iconocast

© 2003-07. ICONOCAST is a trademark of iconocast.com.