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A new study conducted by researchers at the University of Edinburgh has suggested that Mars may be once home to an alien civilization,
at least in microbial forms. As per the researchers who took part in the study, rocks near the ancient Martian lakes may contain traces of tiny creatures, better known as microbes.
The researchers believe that the sedimentary rocks made of mud and clay in the Martian surface
may contain fossils in all probabilities. These sedimentary rocks were apparently formed during the Noachian and Hesperian Periods of Martian history.
Experts argue that water was quite abundant on Mars around three to four billion years ago.During the study, researchers conducted various experiments by replicating the environmental conditions on Mars and later tried to locate the most promising sites to look for alien fossils. The recent research was published in the
Journal of Geophysical Research.
The team of researchers who took part in the study also believes that the findings obtained from this study could help NASA to select a suitable landing spot during their next Mars mission. NASA upcoming mission will be launched in 2020 and through this mission, the space agency aims to collect rock samples which will then be brought back to Earth for analysis.
"There are many interesting rock and mineral outcrops on Mars where we would like to search for fossils, but since we can't send rovers to all of them we have tried to prioritize the most promising deposits based on the best available information," said Dr Sean MacMahon, the researcher who led the study, quoted by
First Post.
This is not the first time that a credible group of scientists is talking about alien life on Mars. Previously, Barry DiGregorio, an astrobiologist and an honorary research fellow at the University of Buckingham has also revealed that he has found the evidence of alien life on the red planet.
The astrobiologist claimed that he has spotted biomarkers in the Martian surface, and added that NASA is intentionally covering up the details they know about alien life.
Comment: Good timing. Just yesterday,
this news was reported:
NASA's Curiosity rover has uncovered organic material in an ancient lakebed and confirmed a seasonal cycle of methane - offering the strongest evidence yet of potential life, past or even present, on the Red Planet.
The discoveries were revealed by NASA researchers in a highly-anticipated announcement on Thursday, and details have been published in the journal Science.
The revelations build on a similar announcement made by NASA in 2014, where scientists confirmed that they had discovered chlorinated molecules on the planet for the first time. This latest evidence, however, is far more compelling.
The Curiosity rover discovered organic matter preserved in 3-billion-year-old mudstones at the Gale Crater. The material was located in the first layers of rock, some four miles away from where the chlorinated molecules had been found.
"All life as we know it is based on organic molecules," Jen Eigenbrode, a research scientist at Goddard, said during the press announcement, suggesting that, while this evidence doesn't definitely prove there is life on Mars, the signs are there to investigate further.
Questions remain, however, as to how the organic material was formed. "While we don't know the source of the material, the amazing consistency of the results makes me think we have a slam-dunk signal for organics on Mars,"Eigenbrode said. "It is not telling us that life was there, but it is saying that everything organisms really needed to live in that kind of environment, all of that was there."
Another team of scientists, led by Christopher Webster from the California Institute of Technology, presented evidence that methane concentrations detected on Mars follow strong seasonal variations. The seasonal variation provides an important clue for determining the origin of martian methane.
Webster explained that this is an exciting discovery because 99 percent of methane produced on earth has a biological origin, giving examples of rice paddies and termites. He also pointed out that as methane only lasts for 300 years in the atmosphere and any detections mean that it was created or released relatively recently.
Overall, the latest discoveries bode well for future endeavours. "The chances of being able to find signs of ancient life with future missions, if life ever was present, just went up," said Curiosity's project scientist, Ashwin Vasavada.
Comment: Good timing. Just yesterday, this news was reported: