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Life on Mars (Blog)

6 May 2014, 15:23 UTC
Life on Mars (Blog)
(200 words excerpt, click title or image to see full post)

By Nicole WillettRed Planet Pen Blog (#29)Throughout history, humans have looked at Mars in wonder and have made up myths, legends and science fiction stories about civilizations. When Mariner flew by Mars in 1965 hopes for finding a thriving civilization on the Red Planet were quickly dashed by the 22 postage stamp sized images that slowly trickled back to Earth. The images showed a barren, rocky terrain. For many though, their passion of finding out more details kept the interest in finding life on Mars alive. In 1976 a life detecting experiment invented by Dr. Gil Levin was sent on the Viking I and II Landers to investigate whether microbial life existed in the soil on Mars.Levin named his experiment Gulliver, but it was renamed by NASA to the Labeled Release (LR) experiment. Viking I and Viking II, which were 4,000 miles away from each other, both carried the LR. A brief summary of the LR is as follows; first a sample of Martian soil is scooped up and sent into a thimble-sized chamber, then a tiny drop of nutrient containing radioactive 14C is squirted onto the soil sample, and, if microorganisms are present, they will consume the nutrient and ...

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