Patricio Becerra Shane Byrne Matthew Chojnacki Ingrid J. Daubar Serina Diniega Candice J. Hansen Kenneth E. Herkenhoff Margaret E. Landis Alfred S. McEwen Ganna Portyankina Adomas Valantinas Colin M. Dundas 2021 <div class="article-section__content en main"><p>Mars exhibits diverse surface changes at all latitudes and all seasons. Active processes include impact cratering, aeolian sand and dust transport, a variety of slope processes, changes in polar ices, and diverse effects of seasonal CO₂<span>&nbsp;</span>frost. The extent of surface change has been surprising and indicates that the present climate is capable of reshaping the surface. Activity has important implications for the Amazonian history of Mars: understanding processes is a necessary step before we can understand their implications and variations over time.</p></div> application/pdf 10.1029/2021JE006876 en American Geophysical Union Active Mars: A dynamic world article