Landforms on surface of Mercury suggest that its crust may have shrunk. They are lobate scarps, which are long, sinuous cliffs.
As a result of collisions with meteoroids and comets, Mercury's surface bears similarities to the Moon of Earth. Even with the planet's close proximity to the Sun and its severe temperature changes, people may theoretically walk on its surface. Due to its sluggish rotation, Mercury takes 59 Earth days to complete one full rotation. Huge escarpments up to three kilometers high and hundreds of kilometers long can be found on Mercury's surface. Mercury contains a lot of craters, yet it also has areas with comparatively calm plains. Messenger examined Mercury's surface composition using X-ray fluorescence spectra. It discovered a high magnesium to silicon ratio and low calcium and aluminum to silicon ratios, indicating that the crust was not feldspar-rich like that of the Moon.
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