Navigation Links
Space Station research shows that hardy little space travelers could colonize Mars
Date:5/2/2014

In the movies, humans often fear invaders from Mars. These days, scientists are more concerned about invaders to Mars, in the form of micro-organisms from Earth. Three recent scientific papers examined the risks of interplanetary exchange of organisms using research from the International Space Station. All three, Survival of Rock-Colonizing Organisms After 1.5 Years in Outer Space, Resistance of Bacterial Endospores to Outer Space for Planetary Protection Purposes and Survival of Bacillus pumilus Spores for a Prolonged Period of Time in Real Space Conditions, have appeared in Astrobiology Journal.

Organisms hitching a ride on a spacecraft have the potential to contaminate other celestial bodies, making it difficult for scientists to determine whether a life form existed on another planet or was introduced there by explorers. So it's important to know what types of micro-organisms from Earth can survive on a spacecraft or landing vehicle.

Currently, spacecraft landing on Mars or other planets where life might exist must meet requirements for a maximum allowable level of microbial life, or bioburden. These acceptable levels were based on studies of how various life forms survive exposure to the rigors associated with space travel.

"If you are able to reduce the numbers to acceptable levels, a proxy for cleanliness, the assumption is that the life forms will not survive under harsh space conditions," explains Kasthuri J. Venkateswaran, a researcher with the Biotechnology and Planetary Protection Group at NASA's Jet Propulsion Laboratory and a co-author on all three papers. That assumption may not hold up, though, as recent research has shown that some microbes are hardier than expected, and others may use various protective mechanisms to survive interplanetary flights.

Spore-forming bacteria are of particular concern because spores can withstand certain sterilization procedures and may best be able to survive the
'/>"/>

Contact: Laura Niles
Laura.E.Niles@nasa.gov
281-244-7069
NASA/Johnson Space Center
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Veggie will expand fresh food production on space station
2. CASIS-sponsored research heads to space station aboard SpaceX-3
3. Project MERCCURI crowdsourced space station samples take flight
4. Microbes in space
5. Microbe growth to be examined at International Space Station for UC Davis research project
6. Bright pulses of light could make space veggies more nutritious, says CU-Boulder study
7. Tackling tumors with space station research
8. The space double-whammy: Less gravity, more radiation
9. Rugged, rapid monitor safeguards space crews
10. Space flies offer clues about microgravitys impact on astronauts
11. Scientists discover that thyroid cancer cells become less aggressive in outer space
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Space Station research shows that hardy little space travelers could colonize Mars
(Date:7/31/2014)... adipocytes, or fat cells, are inherently different. Each of ... its own role in metabolism. In the human body, ... Its primary function is energy storage. On the other ... but are only found in a few places in ... special type of brown adipocytes, appear mixed with brown ...
(Date:7/31/2014)... studies have shown that marine noise can affect animal ... the Universities of Bristol and Exeter and the cole ... demonstrated that boat noise stops embryonic development and increases ... the sea slug Stylocheilus striatus used in ... away and later feed on toxic alga but this ...
(Date:7/30/2014)... epigenetic processes to regulate its genes, and adapt to ... of the genome regulation taking place in the truffle, ... Biology and illustrates how the truffle deals with ... authors say this may shed light on how traits ... (Tuber melanosporum), also known as Prigord truffles, have a ...
Breaking Biology News(10 mins):Hope for the overweight 2Boat noise impacts development and survival of sea hares 2How black truffles deal with the jumpers in their genome 2
... Fast development is often perceived as an advantage, ... readiness to cope with the challenges that it poses. ... and University of California, Santa Cruz, and published in ... the acceleration of developmental rate incurs potentially lethal physiological ...
... molding some snow into a ball and hurling it or ... can? New research from Indiana University and the University of ... readily learn to throw long distances. This research also suggests ... in a way critical to our very existence. ...
... N.C. Despite what you might have heard, genetic sequencing ... Duke University Medical Center have shown that functional tests are ... of sequencing studies as they relate to disease, using a ... patients to have many different traits. "Right now ...
Cached Biology News:Faster development might have its costs 2Faster development might have its costs 3IU study: Humans' critical ability to throw long distances aided by an illusion 2IU study: Humans' critical ability to throw long distances aided by an illusion 3Genetic sequencing alone doesn't offer a true picture of human disease 2Genetic sequencing alone doesn't offer a true picture of human disease 3
(Date:7/31/2014)... BLOOMINGTON, Ind. -- Chemists at Indiana University Bloomington ... in bricks-and-mortar fashion, a development with potential value ... as field-effect transistors and photovoltaic cells. , Their ... 3D Crystalline Solids and 2D Self-Assembled Crystals," has ... a journal of the Royal Society of Chemistry. ...
(Date:7/31/2014)... Graphite Metallizing Corporation announces GRAPHALLOY® bearings ... are uniquely suited to prevent loss of lubrication that ... high temperatures . , Recently, a manufacturer of ... at Graphite Metallizing to overcome problems with movement of ... pans containing blocks of powder mixture are loaded onto ...
(Date:7/31/2014)... (PRWEB) July 31, 2014 CollabRx, Inc. ... inform therapeutic decision-making in oncology, today announced that it ... 2014 to discuss the Company's financial results for the ... update about the business in the current fiscal year. ... beginning on Thursday, August 14, 2014, at 5 p.m. ...
(Date:7/31/2014)... Francisco, Calif. (PRWEB) July 31, 2014 ... newly diagnosed patients with an overview of the disease ... management of drug side effects, as well as updates ... “We’re grateful to Dr. Sandy Srinivas for organizing this ... survivor of kidney cancer. “Sandy and her colleagues have ...
Breaking Biology Technology:Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 2Chemists demonstrate 'bricks-and-mortar' assembly of new molecular structures 3Graphite Metallizing Announces Bearings for High Temperature Oven Applications 2Graphite Metallizing Announces Bearings for High Temperature Oven Applications 3CollabRx, Inc. Schedules First Quarter Fiscal Year 2015 Financial Conference Call and Business Update 2
... deCODE genetics,(Nasdaq: DCGN ) today announced its ... 2008. A conference call to discuss the,quarter,s results, ... webcast live tomorrow, Friday, November 7, at 8:00am ... third quarter 2008 was $11.3 million, compared,to $22.2 ...
... NGX-4010 for management of pain associated ... with PHN, ... review for NGX-4010 ... NGSX ), a biopharmaceutical company focused on developing and,commercializing novel pain management ...
... While Public Relations has,long been used as a ... ability to reach consumers has never been greater. ... the traditional press,release as effective and low-cost methods ... was conducted by Best Practices, LLC to,identify what ...
Cached Biology Technology:deCODE genetics Announces Third Quarter 2008 Financial Results 2deCODE genetics Announces Third Quarter 2008 Financial Results 3deCODE genetics Announces Third Quarter 2008 Financial Results 4deCODE genetics Announces Third Quarter 2008 Financial Results 5deCODE genetics Announces Third Quarter 2008 Financial Results 6deCODE genetics Announces Third Quarter 2008 Financial Results 7deCODE genetics Announces Third Quarter 2008 Financial Results 8deCODE genetics Announces Third Quarter 2008 Financial Results 9deCODE genetics Announces Third Quarter 2008 Financial Results 10deCODE genetics Announces Third Quarter 2008 Financial Results 11deCODE genetics Announces Third Quarter 2008 Financial Results 12NeurogesX Reports Third Quarter 2008 Results 2NeurogesX Reports Third Quarter 2008 Results 3NeurogesX Reports Third Quarter 2008 Results 4NeurogesX Reports Third Quarter 2008 Results 5NeurogesX Reports Third Quarter 2008 Results 6NeurogesX Reports Third Quarter 2008 Results 7NeurogesX Reports Third Quarter 2008 Results 8NeurogesX Reports Third Quarter 2008 Results 9New Study Shares Best Practices in Biopharma Public Relations 2
Angiotensin Converting Enzyme [Porcine Kidney, ACE, Peptidyl-dipeptidase A]...
Oven mesh sheets, large, 23 x 23cm, pack of 5...
Preparation Note: Prepared essentially by method of Singer, T.P., J. Biol. Chem., 174, 11 (1948). Quality Clarifier: Contains lipase Unit Definition: One unit will hydrolyze 1.0 μmole of p-ni...
... Analysis Note: Protein determined by Biuret ... 25 mM Tris-HCl, pH 7.6, 1 mM ... 2 Preparation Unit Definition: One unit ... per minute at pH 9.8 at 37 ...
Biology Products: