Hollows on Mercury

NASA

Mercury’s Strange Hollows

Enigmatic depressions on the surface have puzzled scientists since the 1970s https://youtube.com/watch?v=gqg8PR2mVvc%3Ffeature%3Doembed%26enablejsapi%3D1%26html5%3D1%26origin%3Dhttps%3A For decades, scientists have been puzzling over strange hollows on Mercury’s surface, thousands of peculiar depressions at a variety of longitudes and latitudes, ranging in size from 60 feet to more than a mile across (18-1,600 meters), and up to 120 feet deep (37 meters). No one knows…