Alien and UFO enthusiasts claim to have spotted fossils of what seems to be grizzly bear or a slot like creature in one of the images beamed back by NASA rover.
The strange creature like fossilised rock was first spotted by a YouTube alien enthusiast Paranormal Crucible who has a history of reporting such strange sightings in photos of Mars. According to the YouTuber, the anomaly could be a statue or fossil of a creature and it is visible even without enhancement of the image or without requiring any extra processing. The YouTuber adds that it resembles a bear or sloth-like creature and that it could possibly has a shell that has also fossilised.
Other UFO and alien enthusiasts have joined the bandwagon like always. Some claim that the dark patch is the curly fur coat and that the face area has significantly less hair. One alien enthusiast goes to the extent of claiming that even the teeth are visible and that it is not a statue because all statue-like objects found of Mars have had one color till date and that this particular creature has two or three colors.
The grizzly bear or slot-like creature are the latest to join the long list of anomalies that have been spotted on Mars including shoes, water, statues, mouse, rats, and bigfoot skull. You can find the unedited image here [http://mars.jpl.nasa.gov/msl-raw-images/msss/01502/mcam/1502ML0076210020603985E01_DXXX.jpg].
Life on Mars
While there has been no proof regarding life on Mars, it turns out that four decades ago when NASA’s Viking landers visited Mars scientists had stumbled upon clues that hinted at life on the Red Planet and surprisingly these clues may have been missed out by scientists at the time, a new study published in Astrobiology has claimed.
What the Viking landers had discovered was contradictory – one of the experiments called the Labeled Release (LR) experiment tested positive for metabolism in the Martian soil, while another related experiment found no trace of organic material. The first experiment suggested that there is presence of life on the Red planet while the second experiment suggested absence of life.
So the primary question that was asked was if there is no organic substance, what is metabolizing? Scientists haven’t been able to settle the conflicting results and this eventually led scientists to determine that there was no conclusive evidence that there was life on Mars. However, there were a few scientists who believed that Viking results are indicating presence of life on the Red planet and that we have missed out on determining that fact.
One of the scientists is the Experimenter of the Viking LR experiment – Gilbert Levin. Initially Levin thought that results of the experiment were unclear and stated merely that the results were consistent with biology. Levin, along with Viking Co-Experimenter, Dr. Patricia A. Straat, based on years of subsequent experiments now argue that the Mars results are best explained by living organisms.
The duo have published a new paper in journal Astrobiology wherein they have pointed out that in light of the new evidence that have emerged over the years none of the proposed abiotic substances sufficiently explains the Viking results, and that Martian microbes should still be considered as the best explanation of the results.
If we go into the detail about how the LR experiment on both the landers – Viking 1 and 2 – worked, they collected samples of Martian soil, injected them with a drop of dilute nutrient solution, and then monitored the air above the soil for signs of metabolic byproducts. Since the nutrients were tagged with radioactive carbon-14, if microorganisms in the soil metabolized the nutrients, they would be expected to produce radioactive byproducts, such as radioactive carbon dioxide or methane. The experiments were performed on Mars to search for organic molecules but they didn’t yield positive results. So it came as a surprise when both Viking landers, located 4,000 miles apart, collected soil that tested positive for metabolism. All other possibilities were ruled out such as ultraviolet radiation and according to the duo, these results provide some of the strongest evidence that the soil contained Martian life.
Levin and Straat also review some of the latest proposals pertaining to nonbiological chemicals that might produce identical results. They review possible candidates including formate, perchlorate or one of its breakdown products, but the duo suggests that these no nonbiological agent has satisfied all of the LR results.
Going forward, Levin and Straat propose that carefully designed experiments can help to answer the question of the existence of life on Mars. In particular, LR-type experiments that test for chiral preference could tell whether the metabolizing substance is biological or chemical, since only biological agents can distinguish between left and right isomers.
The scientists also emphasize the importance of the continued search for organic molecules, especially those with biological significance such as amino acids, simple carbohydrates, lipids, proteins, and DNA. Future experiments may also provide the possibility of examining Martian soil under a microscope.
Despite the positive outlook, Levin and Straat note that all future experiments will have an unavoidable drawback: the potential for contamination by previous landers. In this regard, the Viking landers were unique in that they were the only pristine Martian life-detection experiment that we will ever have.