Caloris Planitia
Videos
Caloris Planitia is a plain within a large impact basin on Mercury, informally named Caloris, about 1,550 km in diameter. It is one of the largest impact basins in the Solar System. "Calor" is Latin f
MESSENGER's first image of the unseen side of Mercury from a distance of about 27,000 kilometres (17,000 mi) cropped to highlight Caloris. The rim is hard to discern as the Sun is directly overhead, preventing shadows.
Comparison of the original estimated size of the Caloris basin (yellow) with that based on images from the MESSENGER probe (blue).
Hilly, lineated terrain at the antipode of Caloris.
Close up of the chaotic terrain.
In astronomy, astrophysics and geophysics, a mass concentration is a region of a planet's or moon's crust that contains a large positive gravity anomaly. In general, the word "mascon" can be used as a
Topography (top) and corresponding gravity (bottom) signal of Mare Smythii on the Moon containing a significant mascon
Mascons at Caloris Planitia and Sobkou Planitia