Mercury is still shrinking as its cooling core cracks the planet’s thin crust

Mercury’s massive metallic core leads to a contraction of its rocky exterior, resulting in numerous fractures and cliffs spanning hundreds of kilometers. Recent studies have uncovered fault scarps that suggest active tectonic processes are still at play on the planet. Researchers examine these formations to gain insight into Mercury’s internal mechanics, with future missions expected to deliver clearer images of these relatively young tectonic anomalies.