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Topic: Life on Mars


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In the News (Fri 24 Nov 17)

  
  Life on Mars - Wikipedia, the free encyclopedia
Mars' polar ice-caps were observed as early as the mid-17th century, and they were first proven to grow and shrink alternately, in the summer and winter of each hemisphere, by William Herschel in the latter part of the 18th century.
By the mid-19th century, astronomers knew that Mars had certain other similarities to Earth, for example that the length of a day on Mars was almost the same as a day on Earth.
Since formaldehyde is produced in the oxidation of methane, which occurs on Mars, it is unsurprising that it is detected in the Martian atmosphere.
en.wikipedia.org /wiki/Life_on_Mars   (1469 words)

  
 Mars Exploration: Science   (Site not responding. Last check: 2007-09-17)
Recent data from Mars Global Surveyor suggest that liquid water may exist just below the surface in rare places on the planet, and the 2001 Mars Odyssey will be mapping subsurface water reservoirs on a global scale.
Therefore, future missions will also be on the lookout for energy sources other than sunlight, since life on the surface of mars is unlikely given the presence of "superoxides" that break down organic (carbon-based) molecules on which life is based.
Life detection technologies under development will help us define life in non-Earth-centric terms so that we are able to detect in all the forms it might take.
mars.jpl.nasa.gov /science/life   (535 words)

  
 Life on Mars! It's Official!
This year has seen the 20th anniversary of the Viking mission to Mars, a mission that failed to find evidence of living things and led subsequent meetings of "exobiologists" to the disappointing conclusion that conditions on the surface of the Red Planet were not conducive to life.
I found life on Mars seven years ago, says Briton BRITISH scientists can claim to be the first to have found evidence of life on Mars in the wake of sensational new evidence that suggests primitive organisms may still thrive there.
Scientists were told of the "smoking-gun evidence of life on Mars" by Dr Ian Wright, a member of the Open University team led by Prof Colin Pillinger, joint organiser of the Royal Society meeting.
www.mufor.org /marslife.html   (3116 words)

  
 Ancient Life on Mars???   (Site not responding. Last check: 2007-09-17)
Mars is the fourth planet from the Sun, and is the outermost of the “terrestrial” (Earth-like, or rocky) planets.
Mars appears reddish because much of it is coated with iron oxide minerals (the material that forms rust on Earth).
Mars' smaller size — approximately one-half the diameter of Earth-- means that Mars loses its internal heat much faster than Earth does.
www.lpi.usra.edu /publications/slidesets/marslife   (855 words)

  
 New Scientist Breaking News - Life on Mars - but 'we sent it'
There is life on Mars, a researcher has announced at a conference - unfortunately it is just spaceship-borne contamination.
"I believe there is life on Mars, and it's unequivocally there, because we sent it," Andrew Schuerger of the University of Florida told the Lunar and Planetary Science Conference in Houston, Texas, recently.
Schuerger says that of all the space probes sent to Mars, only the two Viking craft in 1976 were adequately heat sterilised.
www.newscientist.com /article.ns?id=dn4812   (364 words)

  
 Life on Mars: Possible Evidence
On August 6, 1996, Nasa announced the discovery of evidence for the existence of fossil life on Mars.
This life is thought to have existed there billions of years ago (the carbonates are estimated at an age of 3.6 billion years), and consist of simple micro-organisms similar to terrestrial bacteria.
Mars Global Surveyor confirmed this evidence from Mars orbit by photographing various landforms indicating former existence of huge quantities of water on Mars in late 1997 and early 1998.
www.seds.org /~spider/spider/Mars/mmetlife.html   (564 words)

  
 BBC - Drama - Life On Mars - About The Show   (Site not responding. Last check: 2007-09-17)
Life On Mars is made by Kudos Film and Television*, who also produce Hustle and Spooks.
Jane Featherstone, executive producer of Life on Mars, says, "Life on Mars is a fantastic idea which takes the cop show genre and gives it a unique, humorous and irresistible twist.
John Yorke, Controller of Continuing Drama Series and Head of Independent Drama at BBC explains, "The beauty of Life on Mars is that each week it concentrates on catching criminals through two completely opposing styles of policing.
www.bbc.co.uk /drama/lifeonmars/about.shtml   (562 words)

  
 Spherix - Mars Research
Mars life - how Darwinian pressures might have shaped its form and function, Instruments, Methods, and Missions for Astrobiology, SPIE Proceedings, 5906A13, in press.
Interpretation of new results from Mars with respect to life, Instruments, Methods, and Missions for Astrobiology, SPIE Proceedings 5555, 14, August 2004.
A Sterile Robotic Mars Soil Analyzer, Instruments, Methods, and Missions for Astrobiology, SPIE Proceedings, 4859, 78-86, August 2002.
mars.spherix.com   (1142 words)

  
 Life on Mars?   (Site not responding. Last check: 2007-09-17)
The case for ancient life on Mars looks better than ever after scientists announced that they had discovered magnetic crystals inside a Martian meteorite -- crystals that, here on Earth, are produced only by microscopic life forms.
The scientists believe that these crystals traveled from Mars in the meteorite, rather than being produced on Earth by bacteria that contaminated the meteorite after it arrived in Antarctica.
But several facts support a Martian origin, including the deep embedding of the crystals in the carbonate material of the meteorite and the preference of the magnetite-producing bacteria for low-oxygen environments, making it unlikely that such bacteria would live where the meteorite was found.
www.firstscience.com /site/articles/mars.asp   (1203 words)

  
 Life on Mars?
The possibility of life on Mars has fascinated many, including the wealthy American astronomer Percival Lowell, who erroneously thought he had discovered hundreds of canals by 1908.
One of Australia’s most ardent atheistic sceptics proclaimed ‘Mars life’ as a fact, and, without the caution one would expect from a scientist, used it as an excuse to launch another tirade against scientists who believe the universe and life were created.
These dubious claims about ‘life’ in a rock are a smoke-screen, hiding the fact that true life is only found in the Rock (Isaiah 44:8), and that the only way to eternal life is through the chief Cornerstone, Jesus Christ (Ephesians 2:20, cf.
www.answersingenesis.org /creation/v19/i1/mars.asp   (2081 words)

  
 Life on Mars
Speculations on possible life on Mars (and other planets) go back to the first days when the nature of planets as Earth-like bodies was recognized.
However, in 1997, Viking Life experimentator Gilbert V. Levin claimed that his experiments may have detected evidence for active microbial life on Mars.
On August 6, 1996, scientist of Nasa and Stanford University announced the discovery of possible evidence for the existence of fossil life on Mars, found in meteorites of probable Martian origin, recovered in Antarctica.
www.seds.org /~spider/spider/Mars/marslife.html   (596 words)

  
 CNN - Ancient meteorite may point to life on Mars - Aug. 7, 1996
Scientists believe the meteorite was blasted away from Mars by the impact of asteroids, and landed on Earth.
Davies said life forms that began on Mars billions of years ago may have taken cover deep below the Martian surface, and might even still be living there.
The life forms could have gone underground as permafrost or may be contained in the planet's ice caps.
www.cnn.com /TECH/9608/06/mars.life   (690 words)

  
 Apologetics Press - Life on Mars?
The authors speculate that the bacteria grew in calcium-rich waters that had penetrated the cracks of the rock, and were preserved as the fluid hardened into carbonate.
Ham, and others, also point out that if there ever was life (or at least, the remains of life) on Mars, then perhaps it was carried there by the solar wind from Earth’s outer atmosphere.
But this is not the case, and there is no reason to think that life on Mars will solve this most intractable problem of materialistic evolution.
www.apologeticspress.org /articles/246   (1130 words)

  
 Open Directory - Science: Astronomy: Solar System: Mars: Life on Mars   (Site not responding. Last check: 2007-09-17)
Life on Mars - Malin Space Science Systems article recounts the history of speculation and investigation into the possibility of life on the red planet.
Old data holds new hope for Life on Mars - There's a rhythm in the release of radioactive-labeled gas in the experiments done by the Viking-Landers in 1976.
MarsNews.com: Life on Mars - News feed of recent articles related to the possibility of life on the red planet.
dmoz.org /Science/Astronomy/Solar_System/Mars/Life_on_Mars   (428 words)

  
 LIFE ON MARS! by Brig Klyce
Gullied Slopes on Mars, by Linda M.V. Martel, Hawai'i Institute of Geophysics and Planetology, 29 Aug 2003.
Gray Iron Oxide on Mars by Linda M.V. Martel, Hawai'i Institute of Geophysics and Planetology, 13 Mar 2003.
Having a Ball on Mars from the ARC Astrobiology Institute, [publicised] 22 Aug 2001.
www.panspermia.org /marslife.htm   (6023 words)

  
 Classroom Activity: Is There Really Life on Mars?
Scientifically speaking, to study the controversy about life on Mars, it is important to understand what the work of scientists is all about.
Conditions on Mars were thought to be far too harsh for large life forms.
During one day, the temperature on Mars may range from 10 degrees C to -80 degrees C. The large changes in temperature produce strong winds and planet-wide dust storms.
www.pbs.org /deepspace/classroom/activity7.html   (1110 words)

  
 Catalyst: Mars Discovery...Life On Mars? - ABC TV Science
He is going to detail to the world his evidence for the existence of life on Mars.
Gazing down at the surface of Mars last year, it detected small amounts of the gas methane in the Martian atmosphere, a discovery independently confirmed by two other teams by telescope from Earth.
We've also seen concentrations of water and methane on three locations around the equator on Mars, which gives us even greater expectation that these indications of methane are actually coming from maybe forms of life that exist where there is water presence on the surface.
www.abc.net.au /catalyst/stories/s1310280.htm   (953 words)

  
 Wired News: Scientists: Life on Mars Likely
In February, Formisano presented data at the Mars Express Science Conference at Noordwijk in the Netherlands.
The race to find proof of life started in earnest in 1996, after NASA scientists published a paper claiming that the Martian meteorite ALH84001 contained evidence of past biological activity.
But while the issue of life on Mars may have undergone a paradigm shift, it is really only in Europe that scientists are openly excited.
www.wired.com /news/space/0,2697,67315,00.html?tw=wn_tophead_5   (884 words)

  
 SPACE.com -- Life on Mars Likely, Scientist Claims
Mars rover tracks within Gusev Crater show what may be water squeezed out of the soil by the weight of the wheeled Spirit robot.
None of the many new findings about Mars revealed by Spirit and Opportunity, Levin concluded, conflict with, or render untenable, his long-held belief that the Viking Labeled Release experiment in 1976 detected living microorganisms in the soil of Mars.
If indeed Mars is rife with life, care should be taken in hauling back to Earth specimens of rock and surface materials from the red planet.
www.space.com /scienceastronomy/mars_microorganisms_040803.html   (1080 words)

  
 BBC News | SCI/TECH | Life on Mars hopes raised
Scientists have found "intriguing" new evidence that may indicate there is life on Mars.
An analysis of data obtained by the Pathfinder mission to the Red Planet in 1997 suggests there could be chlorophyll - the molecule used by plants and other organisms on Earth to extract energy from sunlight - in the soil close to the landing site.
Mars Pathfinder mission touched down in the Ares Vallis region of Mars in July 1997.
news.bbc.co.uk /1/hi/sci/tech/1913228.stm   (590 words)

  
 PSR Discoveries: Hot Idea: Life on Mars
Future missions are planned to search other terrains on Mars, such as areas where water must have flowed in rivers and formed lakes that eventually dried up.
ALH 84001 originated as a slowly-cooled igneous rock in the Martian crust, was excavated by an impact, altered by fluids, and finally sent to Earth by another impact.
The NASA-Stanford group cites four lines of evidence for fossil life in ALH 84001, all of which are found associated with unusual globules of carbonate minerals: (1) formation before arrival on Earth; (2) concentrations of organic chemicals; (3) tiny grains of iron oxide and iron sulfide; and (4) tubular, fossil-like objects.
www.psrd.hawaii.edu /Oct96/LifeonMars.html   (292 words)

  
 SPACE.com -- Exclusive: NASA Researchers Claim Evidence of Present Life on Mars
The HRSC obtained this image during during orbits 334 and 360, on 24 April and 2 May 2004 respectively, with a resolution of approximately 21 metres per pixel for the earlier orbit and 30 metres per pixel for the latter.
What Stoker and Lemke have found, according to several attendees of the private meeting, is not direct proof of life on Mars, but methane signatures and other signs of possible biological activity remarkably similar to those recently discovered in caves here on Earth.
Dubbed the Mars Science Laboratory, the nuclear-powered rover will range farther than any of its predecessors and will be carrying an advanced mass spectrometer to sniff out methane with greater sensitivity than any instrument flown to date.
www.space.com /scienceastronomy/mars_life_050216.html   (835 words)

  
 Online NewsHour: Life on Mars? -- August 7, 1996
KWAME HOLMAN: The possibility that life once existed on Mars has been substantially bolstered by the discovery of organic compounds in a meteorite that plunged from Mars to Earth 13,000 years ago.
The scientists estimate a huge asteroid collided with Mars about 15 million years ago and blasted rock from Mars into space, where it wandered until it fell onto an ice field in Antarctica some 13, 000 years ago.
KWAME HOLMAN: Life on Mars has been considered a possibility ever since it was learned water once existed on the planet’s surface, but landings by Viking spacecraft during the 1970's revealed no sign of life.
www.pbs.org /newshour/bb/science/mars_kwame_8-7.html   (524 words)

  
 Is (Was?) There Life on Mars?
Metabolism is a universal property of life on earth.
Whether tested on Mars itself, or on samples returned to earth, rigorous care must be taken to ensure that there is no contamination by terrestrial molecules.
The case for life on Mars — whether today or in the past — is neither proven nor disproven.
users.rcn.com /jkimball.ma.ultranet/BiologyPages/M/Mars.html   (1200 words)

  
 MARS: Life on Mars? -
Finding life on Mars, however small it might be, would radically change the way we think about the possibilities for life throughout the Universe.
Finding life isn't exactly easy--scientists aren't even satisfied yet that they have a definition for life that would work for any planet.
Questions like these are being asked by astrobiologists, the scientists who study life and its possibilities throughout the Universe.
mars.jpl.nasa.gov /life   (211 words)

  
 BBC NEWS | Science/Nature | Historic Mars lander 'did find life'
In 1976, the world was gripped by excitement when a robotic spacecraft touched down on Mars for the first time in history.
Dr Levin, one of three scientists on the life detection experiments, has never given up on the idea that Viking did find living micro-organisms in the surface soil of Mars.
He continued to experiment and study all new evidence from Mars and Earth, and, in 1997, reached the conclusion and published that the so-called LR (labelled release) work had detected life.
news.bbc.co.uk /1/hi/sci/tech/2941826.stm   (640 words)

  
 CNN - Mission: Mars - Nov. 7, 1996
A U.S. space probe is on its way to the red planet to try to start answering those and other questions about Mars.
The mission is the first step in a planned decade-long exploration of Mars, and comes four months after NASA revealed what some say is "the biggest discovery in the history of science" -- a Martian meteorite with supposed evidence of ancient microscopic life.
Life on Mars - from the Federation of American Scientists' Space Policy Project
www.cnn.com /TECH/9608/mars.life.special   (267 words)

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