Dyar Talks to Globe about Life on Mars

This illustration depicts a concept for the possible extent of an ancient lake inside Gale Crater. The existence of a lake there billions of years ago was confirmed from examination of mudstone in the crater’s Yellowknife Bay area. Credit: NASA/JPL-C

Curiosity science team member and Mount Holyoke Professor Darby Dyar discusses evidence of an ancient freshwater lake that once might have supported life on the Red Planet.