The details of an enormous Grand Canyon-sized scar on the surface of Mars has been pictured in never-before-seen detail.
An enormous Grand Canyon-sized scar on the surface of Mars has been pictured in never-before-seen detail.The striking scar even has a name, the Aganippe Fossa, and is roughly 375 miles long and is known as a “grabben” which is a ditch-like groove with steep walls on either side.that, from above, the grabben appears incomplete with breaks in the groove but it is thought the be a single structure stretching about 100 miles longer than the Grand Canyon.
The Mars Express can capture high-resolution images of the Martian surface in 3D, enabling detailed topographic maps such as this one.it is still unsure of how and when Aganippe Fossa came to be or how old it is. But the space agency says “it seems likely that it was formed as magma rising underneath the colossal mass of the Tharsis volcanoes caused Mars’s crust to stretch and crack.”
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