NORMAN — A free lecture will address the presence of water on Mars at 7 p.m. Thursday at Sam Noble Oklahoma Museum of Natural History, 2401 S Chautauqua Ave.
Megan Elwood Madden, assistant professor in University of Oklahoma’s School of Geology and Geophysics, will present "Water on Mars: An Environment for Life?” in Kerr Auditorium. Madden’s research focuses on planetary geochemistry, especially the role of water in planetary processes. Her lecture will look at the evidence for liquid water on Mars and its implications for habitability in the past, present and future. After the presentation, there will be a stargazing session on the museum grounds. Telescopes will be provided. The presentation is part of the International Year of Astronomy lecture series organized by OU’s department of physics and astronomy. The next lecture is "Black Holes!” at 7 p.m. May 7 by Karen Leighly of the OU physics and astronomy department.