NASA is planning to probe the moon up 2/3 it's depth with soon to launch probe

NASA instrument on Firefly's Blue Ghost Lander to study lunar interior

As part of its Artemis campaign, NASA is developing a series of increasingly complex lunar deliveries and missions to ultimately build a sustained human presence at the moon for decades to come. Through the agency's CLPS (Commercial Lunar Payload Services) initiative, commercial provider Firefly's Blue Ghost lander will head to the moon's Mare Crisium for a 14-day lunar lander mission, carrying NASA science and technology that will help understand the lunar subsurface in a previously unexplored location.

phys.org