National

Parts of the moon have stable temperatures fit for humans, researchers find

By Shauneen Miranda

Published July 30, 2022 at 12:36 PM PDT

This story was published more than 2 years ago.

Researchers found that lunar pits and caves reach stable temperatures, making them potentially suitable for human life.

Hoping to live on the moon one day? Your chances just got a tiny bit better.

The moon has pits and caves where temperatures stay at roughly 63 degrees Fahrenheit, making human habitation a possibility, according to new research from planetary scientists at the University of California, Los Angeles.

Although much of the moon's surface fluctuates from temperatures as high as 260 degrees during the day to as low as 280 degrees below zero at night, researchers say these stable spots could transform the future of lunar exploration and long-term habitation.

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The shadowed areas of these pits could also offer protection from harmful elements, such as solar radiation, cosmic rays and micrometeorites.

For perspective, a day or night on the moon is equivalent to a little over two weeks on Earth — making long-term research and habitation difficult with such extremely hot and cold temperatures.

Some pits are likely collapsed lava tubes

About 16 of the over 200 discovered pits most likely come from collapsed lava tubes — tunnels that form from cooled lava or crust, according to Tyler Horvath, a UCLA doctoral student and head of the research.

The researchers think overhangs inside of these lunar pits, which were initially discovered in 2009, could be the reason for the stable temperature.

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The research team also includes UCLA professor of planetary science David Paige and Paul Hayne at the University of Colorado Boulder.

Using images from NASA's Diviner Lunar Radiometer Experiment to determine the fluctuation of the moon's pit and surface temperatures, the researchers focused on an area about the size of a football field in a section of the moon called the Mare Tranquillitatis. They used modeling to study the thermal properties of the rock and lunar dust in the pit.

"Humans evolved living in caves, and to caves we might return when we live on the moon," said Paige in a UCLA press release.

There are still plenty of other challenges to establishing any sort of long-term human residence on the moon — including growing food and providing enough oxygen. The researchers made clear that NASA has no immediate plans to establish a base camp or habitations there.

Corrected: July 31, 2022 at 9:00 PM PDT

A previous version of this article implied that the Mare Tranquillitatis is about the size of a football field. In fact, the researchers studied a section of the Mare Tranquillitatis that is that size.