Mercury is shrinking faster than we thought. What's going on inside of it?

An illustration of shrinking Mercury. When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of a shrinking Mercury. | Credit: Robert Lea (created with Canva) Wrinkles on the surface of Mercury have revealed that the closest planet to the sun is shrinking faster than scientists thought. New research suggests that Mercury is shrinking between 10% and 30% faster than had been previously estimated. The team behind this research calcula…