Mars: A Dynamic World
This lecture, presented on Thursday, April 7, 2011 at the National Air and Space Museum's National Mall building, was part of the 2011 Exploring Space Lecture Series. The HiRISE camera on the Mars Reconnaissance Orbiter images Mars in greater detail than ever before, and records the effects of active processes shaping the surface. High resolution images show impacts less than a decade old, ice that fades away, avalanches of frost and dust, and sand and dust moved by the wind. In this presentation, Alfred McEwen describes the dynamic activity on Mars and its implications for possible life, including visitors from Earth. Alfred S. McEwen is the Principal Investigator for HiRISE and Professor of Planetary Science at the University of Arizona. This program is made possible by the generous support of Aerojet and NASA.