Seismic waves generated by natural tremors can locate and map subsurface water ice on the Moon, according to a new study published in Science Advances. Researchers from the University of Maryland, Lawrence Berkeley National Laboratory, and the University of Hawaii found that frozen lunar soil responds differently to seismic vibrations than dry regolith, providing a new method to detect hidden resources for future crewed missions.
Seismic Detection of Lunar Water Ice
Detecting subsurface water has long challenged planetary scientists relying solely on orbital satellites. While orbital scanners map surface features and permanently shadowed craters, they cannot see deep into the lunar crust where deposits may rest. According to the new research, ice stiffens the surrounding material and causes seismic waves to travel two to three times faster than they would through dry regolith. Future lunar missions equipped with seismometers can measure these underground vibrations to map buried ice reserves without digging.
Supporting NASA’s Artemis Program at the Lunar South Pole
NASA’s Artemis program targets the south pole of the Moon for crewed landings planned for 2028. Deep, permanently shadowed polar craters contain frozen water ice that has survived for billions of years. According to researchers, this water serves as a vital resource for long-term human presence. Melted and purified ice provides drinking water, while splitting the molecules via electricity yields breathable oxygen and hydrogen for production of fuel.
Astronauts carrying limited supplies from Earth will rely heavily on localized resources to sustain long-duration surface operations.
Upcoming Seismometer Missions to the Moon
Verification of these seismic techniques is approaching quickly. China’s Chang’e-7 mission, carrying a seismometer, is scheduled to land near Shackleton Crater by the end of 2026. Additionally, NASA astronauts participating in the Artemis missions in 2028 could deploy environmental monitoring stations directly onto the lunar surface. Nicholas Schmerr, a co-author of the study who helped develop seismic instrumentation, notes that identifying these assets is critical for astronaut survival.
Nicholas Schmerr stated that it is critical to identify any materials on the Moon that astronauts can use during their time on the surface. He explained that because they will be limited by the small supplies they brought from Earth, anything they find on the Moon will help them sustain themselves on what it offers, particularly for research outposts or long-term missions.
Did you know? Shackleton Crater, located at the lunar south pole, features permanently shadowed regions where temperatures stay low enough to preserve ice deposits for billions of years.
Frequently Asked Questions
How do seismic waves help find water on the Moon?
Ice stiffens underground material, causing seismic waves to travel two to three times faster than they do through dry regolith. Seismometers can measure these differing speeds to locate hidden ice.
When are the next missions heading to the lunar south pole?
China’s Chang’e-7 mission is scheduled to land near Shackleton Crater at the end of 2026 with a seismometer on board, while NASA’s Artemis crewed landings are targeted for 2028.
Why is water ice on the Moon so valuable for astronauts?
Water ice can be purified for drinking, and its molecules can be split using electricity to generate breathable oxygen and hydrogen for production of fuel.
Want to stay updated on the latest space exploration milestones? Leave a comment below or share this article with fellow space enthusiasts.
Keep reading