A localized region on this body has been termed "hilly and lineated," or "weird terrain."  That region of this body's Discovery Quadrangle is hypothesized to have formed due to seismic waves generated by the formation of the antipodal feature.  Smoot
A localized region on this body has been termed "hilly and lineated," or "weird terrain."  That region of this body's Discovery Quadrangle is hypothesized to have formed due to seismic waves generated by the formation of the antipodal feature.  Smooth plains, including Odin and Tir Planitiae, surround its large, multiring Caloris impact basin.  The 43 arc-second per century forward shift in its perihelion was an early observed confirmation of general relativity.  FTP, name this terrestrial planet visited by Mariner 10, the innermost of the solar system.
A localized region on this body has been termed "hilly and lineated," or "weird terrain."  
Mercury