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Home » Possibly There’s a simple Reason Why We Haven’t Found Life on Mars
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Possibly There’s a simple Reason Why We Haven’t Found Life on Mars

BryarBy BryarFebruary 25, 2023Updated:February 25, 2023No Comments4 Mins Read
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Credit: Credit: NASA/JPL-Caltech
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Mars rovers tasked with hunting for traces of biology could come over microscopic life forms without smelling any pain, just since their instruments are not up to the task.

A new study completed in Earth’s oldest desert reveals just how current technology cannot usually spot the signatures of living on our own planet ‘s surface area. Let alone on Mars’s.

The scientists behind the investigation argue without improving the ability of ours to determine long-dead’ microbial dark matter’, life on Mars will continue to elude us. Particularly if the life we are searching for existed billions of years back once the planet was wetter and warmer than it is now.

Chile’s Atacama Desert includes an old delta called the Red Stone, which contains sand and rock abundant in mudstone and hematite. Geologically, this particular region is very comparable to parts of Mars, which is why astrobiologists frequently put it to use as a model just for the red world.

When scientists in Chile tried the Red Stone’s mineralogy with the greatest instruments available today, they uncovered several mystical signs.

Almost 9% of the genetic sequences obtained utilizing Next Generation Sequencing fell into the’ unclassified’ category, whereas 40% of the remaining sequences could not be assigned to anything more specific than the greatest of taxa, such as orders or domains.

Scientists from the Autonomous Faculty of Chile (Universidad Autónoma de Chile) say their findings unveil “an unusual high degree of phylogenetic indeterminacy.”

The team has recommended a new idea to symbolize that anxiety, what they call a “dark microbiome”. This term essentially refers to microorganisms that scientists can detect via genetic sequencing without knowing precisely what they’re.

“Thus,” researchers write, “the Red Stone dark microbiome might be composed by truly novel extant species not located anywhere else on Earth, though it might additionally be the case that such dim microbiome in fact represents the relict community of microbial species which used to inhabit the Red Stone delta in the distant past, of which no extant relatives are to be found in the current sequence databases.”

The Red Stone samples were additionally analyzed by testbed instruments used on Mars or maybe destined for Mars, showing detection of microorganisms to be far more demanding, with limited or non-detection in many instances.

Year that is last, the Perseverance rover on Mars found’ strong signs’ of organic matter when coming through an old river delta.

In the years before that, the Curiosity rover picked up signs of organic molecules in equally sand and dried-up mud.

Those’re promising discoveries, but organic matter isn’t a sure sign of life. It’s still unclear if those molecules even have biological origins.

“Our analyses by testbed instruments that are on or shall be sent to Mars unveil that although the mineralogy of Red Stone matches that detected by ground based instruments on the red planet, similarly low levels of organics will be difficult, if not impossible to detect in Martian rocks based on the instrument and technique used,” researchers in Chile conclude.

“Our results emphasize the value in returning samples to Earth for conclusively dealing with whether life ever existed on Mars.”

For a long time now, NASA is planning to retrieve their samples from Mars to take a closer look. But that is easier said than done. Heading to Mars and back requires a space mission to go further than ever.

The day for this historic moment is currently set for awhile now in the 2030s or perhaps 2040s. Hopefully by then the technology of ours will be better equipped to take a good look at what we have discovered.

The study was published in Nature Communications.

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