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This structure found in a meteorite from Mars is still controversial but could be the remains of a bacterial lifeform on the Red Planet.
Extinct volcanoes like Olympus Mons reveal the planet's fiery past.
Mars' North Pole has a cap of frozen carbon dioxide and water.
Originally posted by byhiniur
The 'bacteria' is exactly the same texture as the rocks around it. I therefore doubt it is evidence or we would see more of them.
Originally posted by worksoftplayhard
oh and another thing why would they almighty God make a universe trillions of lightyears wide, or even make solar systems, with one intelligent species? it sounds stupid to have so much space and no one else exploring it. saying humans are the only form on life in the universe is like saying salmon is the only kind of fish in the ocean.
Originally posted by cmdrkeenkid
Pictures on and two are the same image, just different colorizations....
Also, the test results from ALH-84001 all proved inconclusive, with the majority of today's scientists believing it not to be evidence of past life.
But Dr. Gilbert Levin of Spherix, Inc., and his son, Dr. Ron Levin of MIT's Lincoln Laboratory, believe differently. They say that liquid water in limited amounts and for limited times can exist on the surface of present-day Mars. They have based their theory on data collected from the Viking landers and on the 1998 Mars Pathfinder mission.
This father-son team has suggested a diurnal water cycle on Mars: water vapor in the air freezes out by night, then during the day the ice melts. As the day progresses, the heat of the Sun causes this liquid water to evaporate back into the air.
It has already been established from Viking photographs that a thin frost does form overnight on certain areas of the martian surface. Unlike many scientists, the Levins believe that this frosty layer does not instantly revert back into water vapor when the Sun rises. They suggest that, in the early hours of the martian morning, the atmosphere more than one meter above the martian surface remains too cold to hold water vapor. So the moisture stays on the ground.
Data from the Mars Pathfinder support this theory, as the Pathfinder temperature readings noted that temperatures one meter above the surface were often dozens of degrees colder than the temperatures closer to the ground.
Another find in the two decades-plus Viking treasure-trove of data was outlined by Joe Miller, associate professor in the Department of Cell and Neurobiology at the Keck School of Medicine of the University of Southern California in Los Angeles.
Miller has recently reviewed the Viking LR data in great detail.
"To my surprise, in their LR experiment, they seemed to have clear periodic oscillations in the release of gas from a Martian soil sample injected with a nutrient solution. The oscillations in gas release had a period of what appeared to be one Martian day. Being a circadian biologist, I became very excited," Miller told SPACE.com.
On Earth, Miller said, circadian rhythms -- oscillations with a period of nearly 24 hours -- are present in every species examined down to blue-green algae. Was it possible, he asked, that the LR experiment was recording the circadian rhythm of a Martian soil-dwelling microbe?
NASA worked with Miller, providing him the 1976 LR data sets, as well as converting the information to an electronic format. That allowed the circadian biologist to study the data using modern computer-based analytical tools."I found that the gas release was indeed rhythmic, with a period of precisely 24.66 hours, a Martian day," Miller said. This finding, along with other painstaking assessments about LR operations, the scientist feels that a Martian circadian rhythm in the experiment may constitute a biosignature - a sign of life.
Maybe Mars even has life today. The evidence sent back from Mars by two Viking Landers in 1976 and 1977 was not clearcut (6). In fact, NASA's first press release about the Viking tests announced that the results were positive. The "Labelled Release" (LR) experiments had given positive results. But after lengthy discussions in which Carl Sagan participated, NASA reversed its position, mainly because another experiment detected no organics in the soil. Yet Gilbert V. Levin, the principal designer of the LR experiment, still believes the tests pointed to life on Mars (7). When the same two experiments were run on soil from Antarctica, the same conflicting results were obtained (LR - positive; organics - negative.) Soil from Antarctica definitely contains life. The test for organics was negative because it is far less sensitive than the LR experiment. The same problem could have caused the organics test on Mars to give a false negative.