Present_Reason2097
Present_Reason2097 t1_j96kmaq wrote
Reply to This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Looks amazing but why do the craters have protrusions at their centres?
Present_Reason2097 t1_j98pzhw wrote
Reply to comment by Brooksee83 in This image of Mars shows the north polar ice cap, the border between highlands and lowlands, former river valleys, plains covered by dark sands and the large Hellas Planitia impact basin in the south. Credit: ESA/DLR/FU Berlin by MistWeaver80
Woah! Never knew that.thanks!