A deeply eroded giant volcano, active from ancient through recent times and with possible remnants of glacier ice near its base, had been hiding near Mars' equator in plain sight. Its discovery points to an exciting new place to search for life, and a potential destination for future robotic and human exploration.

"We were examining the geology of an area where we had found the remains of a glacier last year when we realized we were inside a huge and deeply eroded volcano," said Dr. Pascal Lee, planetary scientist with the SETI Institute and the Mars Institute based at NASA Ames Research Center, and the lead author of the study announced at the 55th Lunar and Planetary Science Conference held in The Woodlands, Texas. Sourabh Shubham, a graduate student in the Department of Geology at the University of Maryland, is co-author of the discovery.

Join Dr. Lee as he talks with communications specialist Beth Johnson about the recent discovery and its potential impact on the search for life beyond Earth. (Recorded 11 April 2024.)

Press release: https://www.seti.org/press-release/giant-volcano-discovered-mars