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NASA Viking 2 on the surface of Mars. | Credit: NASA/JPL-Caltech
In 1976, NASA Fayander Landers stopped the red planet.
they Experimental results to detect life You still hesitate within the scientific community-nourish the continuous discussion about a major question: Is there a life on Mars?
Quickly forward, you take a new paper and reconsider the results of Vikings’ biological experiments.
Discovery perchlora
The most important change since the conduct of these experiments in the seventies was to discover high levels of Berlurats on Mars. Perchlora explains, in addition to the omitic oxidizing, the results of the Viking and there is no condition for the assumption of life on Mars.
“The discovery of Perklors on Mars has provided the Phoenix mission mainly to explain the results of Landers Viking,” the newly released paper notes. “The thermal decomposition of the Berlops in ovens [Viking] The tool can explain the absence of a discovered membership. Hypochlorite accumulation in the soil from Cosmic Ray Perkal decompositions can explain the reaction that was seen when adding nutrient solutions to the soil in Vikings biology. “
However, the paper adds, “” a non -biological interpretation of Vikings results does not prevent life on Mars. “
Reconsidering the results
The paper that was just released-“Vikings’ biological experiments on Mars is reviewed”-from the participating Mars researchers. Christopher McCaiRichard Queen and Carol Stowker. All the three authors are from the NASA AMES Research Center at Movefett Field, California, near San Francisco.
“With the return of the Mars sample on the horizon and the possibility of future missions to Mars, and perhaps even including life detection tools, it may be timely time to reconsider the results of viking biology,” the research team suggests. “Since Viking landed on Mars, many things have changed, and many things have not changed. What has not changed in the past fifty years is our understanding of the limits of life in cold and dry environments.”
In a statement with Christopher McCai, he said Space.com: “It is important to note that we do not say that the results of the Vikings mean” any life on Mars. “We also do not say that the results of the Vikings indicate a life on Mars.”
McCai said that their basic view is that the results of the Vikings say that there is a birlore and other oxidants on Mars, “and this is what the viking biology has responded to.”
What this means is that the results of the experiences of Viking Biology cannot be used to justify the health and safety of the astronaut or quarantine policy and/or astronauts to return to Earth that does not assume life on Mars.
NASA Viking Mars Lander model. | Credit: NASA/JPL
New data
Related stories:
– Did Landers Viking kill NASA by accidentally on Mars? Why does one world think that
– Mars’s life can escape from Viking Landers
– Life on Mars? After 40 years, Viking Lander still says “Yes”
In their search for the scientific magazine, Icarus, The Research Trio explains that there are major changes resulting from missions to Mars. “The most important new data, to a large extent, is the sudden discovery from Phoenix mission The soil of Mars contains about 0.5 % of the walker, “they notice.” This incredibly high focus of Perchlorse is still not shown enough but the effects of the Vikings results are deep. “
Space scientists explain in their paper that the Berklores and the conclusion model caused by the fact that Viking has not discovered life in the surface soil of Mars will address any discussion to return to the return of the sample or astronauts from Mars.
The “outer space treaty” prohibits negative changes in the Earth’s environment resulting from the insertion of the material outside the planet. “Future experiments are needed to better understand the Mars soil chemistry and the possibility of continuing life there,” Macai and his colleagues add.
Good goals
In collecting their search sheet, they conclude that the Perchlrate model of Vikings results “does not prove that there is no no Life on MarsAnd this does not mean that continuous search for evidence of life on Mars, in the past or present, is meaningless.
In fact, as the research team suggests, “We are strongly discussing the search for evidence of life in future tasks. Good goals are salt deposits and polar grilled snow.”
This was the new research Posted in Icarus.
