Mercury Has Wrinkles That Show It’s Shrinking. Now, Scientists Say the Planet Has Shriveled Far More Than Previously Thought
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/40/a8/40a88975-47da-41c6-b549-3eb3c79685fe/mercury-messenger.jpg?ssl=1 "Mercury Has Wrinkles That Show It’s Shrinking. Now, Scientists Say the Planet Has Shriveled Far More Than Previously Thought")
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A new study suggests that our solar system’s smallest planet has shrunk by up to 30 percent since its birth roughly 4.5 billion years ago