Phobos: Mystery behind Ancient Scars
Investigating the Unique Geological Features of Mars' Larger Moon
This is Phobos, the larger of Mars' two moons, a celestial mystery that drifts silently through the Martian sky. This moon, measuring just about 22 kms across, might seem unremarkable at first glance, but its gentle presence and irregular shape raises concerns on the formation.
Spots and Lines
Notice the spots lined up perfectly. You can also notice the grooves.
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