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Wednesday, May 05, 2010

Martian Megabreccia

This is a new image of Mars showing the central part of a large impact crater on the surface. It has a rock texture called 'megabreccia' because the rock clasts are bigger than in normal breccias, which are formed when impacts break up the surface rocks. This type of rock had never been seen before HiRISE observed it. For a more technical description read the whole feature by the HiRISE camera team:  http://www.uahirise.org/ESP_017257_2360

Image credit: NASA/JPL/University of Arizona.

I just love all the new discoveries coming from all the current spacecraft on and around the planets and moons, it's so amazing that objects people have been observing for hundreds to thousands of years can still hold surprises! Who knows what we could find if we look even closer?!

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