Still certainly made everyone else look like pygmies, with his oversized, riven scarps of claggy, craggy paint, with their fiddly, jagged interlocking fissures. (theguardian.com)
Large fault scarps on Mercury were first discovered in the flybys of Mariner 10 in the mid-1970s and confirmed by MESSENGER, which found the planet closest to the sun was shrinking. (spaceref.com)
In order to determine how Mercury may have shrunk, the researchers studied tectonic features, called lobate scarps, and wrinkle ridges on the planet, which result from interior cooling and surface compression. (ibtimes.com)