Posted: May 16, 2018 at 10:00AM



A Pair of New Impact Craters

   MRO has discovered over 700 new impact sites on Mars. Often, a bolide breaks apart in the atmosphere and makes a tight cluster of new craters.

Here we see just two new craters, both with the same distinctive pattern of relatively blue (less red) ejecta surrounded by a dark blast zone (where dust has been removed or disturbed), and with arcing patterns extending northwest and northeast. This pattern indicates an oblique impact angle with the bolide coming from the north. 

NASA/JPL/University of Arizona (274 km above the surface. Enhanced color image is less than 1 km across).


A Pair of New Impact Craters   MRO has discovered over 700 new... https://ift.tt/2L4JZFC