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Eratosthenes crater is a relatively deep lunar impact crater that lies on the boundary between the Mare Imbrium and ... The Eratosthenian period in the lunar geological timescale is named after this crater, though it does not define the start of this time period. ... Earlier lunar cartographers had given the feature different names.


The lunar maria /ˈmɑːriə are large, dark, basaltic plains on Earth's Moon, formed by ancient ... Lunar nearside with major maria and craters labeled ... The Earth tides do act to deform the shape of the Moon, but this shape is that of an ... A major difference between terrestrial and lunar basalts is the near-total absence of ...


A mare is a smooth, dark area on the surface of the moon. A crater is a huge hole caused by a meteor or meteorite.


How does a mare differ from a crater? A mare is a smooth, dark area on the surface of the moon. A crater is a huge hole caused by a meteor or meteorite.


Both the Maria and the Highlands exhibit large craters that are the result of meteor ... Further, different parts of the surface of the Moon exhibit different amounts of ... Samples from Mare Imbrium and the Ocean of Storms brought back by Apollo ...


May 26, 2006 ... Masterpieces of miniaturisation · What do all the instruments do? ... Highlands and 'mare' seen by SMART-1 ... show the difference between lunar highlands and a mare area from close by. ... As this happened in comparatively recent times , the number of impact craters is far less than in the highland areas.


Below, we're going to do a little first-order "crater geology" so you can see how ... of complex craters from three bodies, note the morphological features that differ ... Very large craters show still more complexity: some, like the Mare Orientale ...


Aug 17, 2009 ... Meteor impacts have shaped the Earth and the moon since early in the history of the solar system. Both worlds have been and continue to be ...


The density of impact craters varies from the heavily cratered southern hemisphere to very ... by the Viking orbiters have crater densities in excess of typical lunar mare surfaces. ... Most Martian craters have quite a different ejecta pattern.