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Terrestrial microbes can temporarily survive on Mars and become a food source for astronauts: Study-Technology News, Firstpost

Some microbes found on Earth may temporarily survive on the surface of Mars, according to studies that may be essential to the success of future missions to the Red Planet. Researchers at NASA and the German Aerospace Center have shown that microorganisms are resistant to Martian conditions by launching them into the stratosphere, the second major layer of the Earth’s atmosphere, which closely represents the main conditions of Mars. I tested it.Studies published in the journal Microbiology FrontierPave the way for understanding not only the microbial threat to space missions, but also the opportunity for resource independence from Earth.

Marta Filipa Cortesao, co-lead author of the German Aerospace Center, said: “A new way to expose bacteria and fungi to Mars-like conditions by using a scientific balloon to fly experimental equipment into the Earth’s stratosphere. I succeeded in the test. ” “Some microbes, especially mold spores, were able to survive the trip even when exposed to very high UV radiation,” Cortessa said.

When looking for extraterrestrial life, scientists need to make sure that what they discover is not just a move from Earth.

“Long-term manned missions to Mars can pose a health risk to astronauts, so we need to know how human-related microbes survive on the red planet,” said German Airlines. Space-based co-lead author Catalina Seams said. Center.

“In addition, some microbes can be invaluable for space exploration. They can help us produce food and material supplies independently of the Earth.

In-flight radiation in September 2019, microbes in the atmosphere for survival and biological results experiments, or MARSBOx. The door rotates and opens, exposing nine microbial samples to the extreme environmental conditions of the stratosphere. Image: NASA

Many important features of the Martian surface environment cannot be found or easily replicated on Earth’s surface, but in the Middle Stratosphere, the conditions are very similar.

“We launch microorganisms into the stratosphere within the MARSBOx (Atmospheric Microorganisms for Radiation, Survival, and Biological Results Experiments) payload, kept under Martian pressure and filled with Martian artificial atmosphere throughout the mission. We did, “explained Cortesao. “The box had two sample layers, the bottom layer being protected from radiation,” she said.

This allowed researchers to isolate the effects of radiation from other tested conditions (dryness, atmosphere, temperature fluctuations during flight).

They said the top-layer samples were exposed to more than 1000 times the levels of ultraviolet light (UV) that could cause sunburn on the skin.

“Not all microbes survived the trip, but the black mold previously detected on the International Space Station. Aspergillus nigger, There is a possibility that it will be revived after returning to Japan. “

“Microbes are so closely related to us, our bodies, our food and our environment that it is impossible to exclude them from space travel,” she said.

The story has been carefully edited to correct spelling mistakes and styles.



Terrestrial microbes can temporarily survive on Mars and become a food source for astronauts: Study-Technology News, Firstpost

Source link Terrestrial microbes can temporarily survive on Mars and become a food source for astronauts: Study-Technology News, Firstpost

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