By Laurence Togetti, MSC
March 31, 2025
Could microbes survive in the permanently shaded regions (PSRS) of the moon? This is a study recently presented on the 56th Lunar and Planetary Science Conference, which can be addressed as a team of researchers from the USA and Canada, which cannot see the likelihood of long-term survival for microbes in the PSR areas of the moon, which are not on the poles due to the small tilt of the moon. This study has the potential to help the researchers better understand unlikely places where they could find life as we know it in the entire solar system.
Here Universe discusses this incredible research with Dr. John Moores, Associate Professor in the Center for Research in Earth and Space Science at York University and the leading author of the study, about the motivation behind the study, significant results, how these results could influence the research of humans to the PSRS, possible contamination from human explorations and how all microbes could be on the PSRs. What was the motivation behind the study?
“A few years ago in 2019, I took part in a study in which the potential of the moon to maintain microbial contamination of space vehicles under the direction of the researcher of the University of Florida Dr. Andrew Schuerger said Dr. Moores today towards Universe. “At that time we did not consider the PSRS because of the complexity of the modeling of the ultraviolet radiation environment. In the years a former student of me, Dr. Jacob Kloos at the University of Maryland, had developed a sophisticated lighting model. Terrestrial microbial contamination.”
For the study, the researchers carried out a number of models to determine whether the reduced amount of ultraviolet radiation and increased temperatures within the PSRs could enable the possible survival of microorganisms within two PSR craters, Shackleton and Faustini. The researchers selected these two craters based on previous studies that enter the modeling of light in the crater, and both craters are also current goals for landing for the upcoming Artemis missions.
As already mentioned, the moon -PSRs are due to the axial inclination of the moon, which corresponds to about 1.5 degrees in terms of the sun, without sunlight. For the context, the axial tendency of the earth is approximately 23.5 degrees in terms of the sun, which leads in the seasons that we circle the sun as earth. As a result of this small axial tendency, certain Mondpsrs such as Shackleton and Faustini have not received any sunlight in a possibly billions of years. While an atmosphere is missing and exposed to the vacuum of the room, this creates very cold pockets that the researchers could suggest to maintain microbes for long periods of time. So what are the most important results of this study?
“In space, microbes are typically killed by high heat and ultraviolet radiation,” says Dr. Moores today towards Universe. “However, the PSRs are very cold and very dark and, as a result, one of the most protective environments in the solar system for the types of microbes that are typically available on space vehicles. To be clear, these microbes cannot metabolize, replicate or grow here.
As already mentioned, the moon -PSRS are currently targeted landing locations for the upcoming NASA Artemis program, especially Shackleton, due to the potential pockets of water ice cream that are trapped in the PSR craters that could use future astronauts for water, fuel and oxygen. However, all space missions run out of the risk of bringing unwanted microbes to the destination, which may contain an otherwise untouched location without microbes. This could lead to incorrect data that is collected after analyzing the data and inaccurate results, which may lead to inaccurate knowledge with regard to the search for life beyond the earth.
This applies in particular to human missions to the moon, since people are of course dirty beings who wear a variety of microbes that could travel to the moon with them. Whatever microbes that could exist within the PSRs are influenced by human microbes and possibly kill them.
To combat this, the NASA Planetary Protection Office has commissioned that outgoing spaceships are sterilized before the start and cleaned clean by microbes, but also have the task of ensuring that the returned spaceship did not wear undesirable microbes outside of the earth. How can the results of this study influence the research of the people in Moon -Psrs?
Dr. Moores tells the universe today: “While we can clean robot spaceships quite well, it is more difficult to decontaminate devices and spatial suits that are used when exploring humans. As a result, people who go into the PSRs are probably significantly more contaminated with them, some are left behind and are kept far behind and are kept far above the moon.”
In addition, the study finds that “care in their exploration should be careful with regard to the PSRs”, but does this refer to planet protection?
Dr. Moores tells the universe today: “It is less a question of planetary protection than the preservation of the PSRs in so close to flawless state for future scientific analyzes. The question is then to what extent this contamination matter on the scientific work that the PSR -PSR -PSR -PSR -PSR -PSRS are done. organic molecules are present.
When the moon PSRS is on microbes, the question arises as to how they arrived there. In view of the strong crater surface of the moon, they could have reached an impressive body from a striking body from elsewhere in the solar system or beyond. However, people have also sent a number of spacecraft that have had an impact on the lunar surface, including the Ranger room vehicle, which performed before the Apollo missions, but these spacecraft crashed near the lunar equator and far from the poles.
In 2009, the Mission of the Moonkrater -Mond -Crater -observation and mission of satellites (Lcross) for the moon intentionally plunged its Centaur level in the Cabeus crater, a PSR crater, which is about 100 kilometers (62 miles) from the Mond -Südpol, with the aim of measuring the water amount produced from the EJecta plume. But how could microbes arrive in Lunar PSRS and what can this teach us about the formation and development of the moon?
“The chance that there are already terrestrial microbial contamination in the PSRs is low, but not zero,” says Dr. Moores today towards Universe. “Several spacecraft affected within or near the PSRs. Although they all did at high speed, earlier examinations of others have pointed out that a small number of spores can survive simulated effects in regolith -like materials. If microbes had survived these effects, they would have been widespread.”
Which new discoveries about potential microbes living on the moon will research researchers in the coming years and decades? Only time will say it, and that's why we know!
As always, they continue and continue looking!
