Yes, the moon is shrinking but that's not the disturbing news scientists discovered that could threaten future NASA missions

• Scientists have known for years that the moon is shriveling like a grape, causing moonquakes.
• A new study said moonquakes in the south pole could put astronauts at risk from landslides.
• NASA's Artemis III mission is headed for areas that seem at risk for this seismic activity.

NASA has known for years that the moon is shrinking. In 2019, for example, scientists estimated the moon had contracted by about 150 feet over the last several hundred million years.

The moon's interior is cooling, and its brittle crust is cracking, creating "thrust faults" where one piece slides over another, which can trigger moonquakes.