Scientists working with NASA have used the Lunar Reconnaissance Orbiter (LRO) to discover shadowy places on the Moon where temperatures always fluctuate within a comfortable 17 degrees Celsius for humans, according to Phys.. org.

These depressions could lead to caverns beneath the surface of the moon and could be reliable bases for researchers to base themselves.. They are more stable than the surface of our planet's satellite, which heats up to 127 degrees Celsius during the day and cools down to -173 degrees at night..

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The depressions on the moon were first seen in 2009, and since then scientists have wondered if they lead to caves that could be used as hiding places.. They can also provide protection against cosmic rays, radiation and micrometeorites..

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Lava tubes, which are also found on Earth, are formed when hot lava flows under a field of cooled lava or a crust forms over it.. The result is a long hollow tunnel. If the ceiling of such a pipe collapses, a hole opens up that can lead to the remaining part, which resembles a cave..

Two of the more visible lava tubes have ledges that lead to pits or voids.. There is also evidence that another ledge may lead to a larger cave..

“Humans evolved by living in caves, and we could return to caves when we live on the moon,” said David Page, one of the authors of the new study..

In the course of the study, Horvath and his colleagues studied one cylindrical depression about 100 meters deep in the region of the Moon, which is known as the Sea of \u200b\u200bTranquility.. To analyze the thermal properties of the soil and lunar dust, and also plotted the temperature in the cavity over time.

They found that the temperature in the cavity fluctuates slightly during the lunar day, remaining around 17 degrees Celsius.. If the cave extends from the bottom of the lava tube, as indicated by the Lunar Reconnaissance Orbiter images, it should also be kept at a comfortable temperature.

Scientists believe that the stable temperature of the lava tubes is provided by their shading, which limits heating during the day and prevents its loss at night.. A day on the Moon lasts about 15 Earth days, during which the surface of the Earth's satellite is constantly exposed to sunlight.. At this time, it is hot enough to boil water on it..

Cold lunar nights also last about 15 Earth days..

Earlier, the NASA Lunar Reconnaissance Orbiter (LRO) discovered on the Moon the crash site of a mysterious rocket that crashed into the Earth’s satellite on March 4. Pictures taken on May 25 show a double impact crater..