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life on mars

The search for life in space continues to this day. But according to former NASA scientists evidence of alien life in space was already known during NASA’s Viking mission to known life on Mars in 1976.

NASA sent two separate Viking orbiters and a pair of landers to Mars to conduct experiments and return with snapshots. According to former NASA scientist Gilbert Levin, the mission detected positive results during the life detection labeled release experiment.

The experiment of Existence Life on Mars

As part of the experiment, Lander mixed Mars soil samples with nitrogen-based nutrient solutions labeled with unique radioactive carbon compounds. The theory is that if microorganisms in the soil metabolize nutrients, they will release radioactive carbon dioxide gas.

Quoted from Science Alert, Wednesday (10/16/2019), Levin told how extraordinary the initial results of positive experiments for microorganisms. Evidence is strengthened by the two Mars landers separated by about 4,000 miles.

Levin insisted thousands of reliable tests with soil and Earth-based culture carried out at the time supported the results. But, still, there is a big obstacle with the result that further experiments do not provide clear evidence for the existence of microorganisms that live on the ground near the lander site.

Levin supports his conclusions with evidence obtained after NASA’s Viking mission, including evidence of surface water, methane, ammonia, and even worm features that appear in images taken by the NASA Curiosity rover.

However, Levin believes, in NASA’s long history of exploring Mars, the United States Space Agency has failed to find direct evidence of life on Mars, even though the search was among the highest priorities.

Compared to sending soil samples to Earth, something that will be done by NASA Mars rover 2020, Levin believes scientists should expand the results of the 1970s experiments and conduct further similar tests. But, before that happens, he has to convince NASA that his experimental evidence about life on Mars is valid.

Source: inews.id


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