Mars's two distinct hemispheres caused by mantle convection not giant impacts, study claims Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a phenomenon known as Martian dichotomy. The Southern Highlands are older, higher in e...

Mars's two distinct hemispheres caused by mantle convection not giant impacts, study claims phys.org/news/2025-01... #Mars #Marsquakes #Convection #MantleConvection #MartianDichotomy #dichotomy #SeismicActivity