A study funded by NASA is ringing an alarm bell: As the moon’s core gradually cools and shrinks, its surface develops creases — like a grape shriveling into a raisin — that create “moonquakes” that can last for hours, as well as landslides. https://cnn.it/42qejTh

The moon is shrinking, and it could be a problem for astronauts | CNN

The moon is shrinking, and it could be a problem for astronauts | CNN

A region of the moon at the center of a new international space race is prone to “moonquakes,” potentially posing a threat to future human settlers, a new study says.