Today marks my twenty-fourth revolution around the sun! To commemorate this momentous occasion, I am going to be a lazy blogger and just let you drool over some HiRISE images instead. The image above is a small crater in the polar layered deposits. It’s filled with ice because the crater walls keep the floor shaded, so frost can collect there. You can read more about this crater at the HiRISE … Continue reading Fresh Craters