Do aliens exist on Mars? Possibly. But how do humans actually go about answering that question? One option is to examine rocks to understand the types of  life-forms, like squishy things, that roamed the earth billions of years ago. That's what Alison Olcott does in her role as associate professor of paleobiogeochemistry in the Department of Geology at the University of Kansas. And while playing on Google Maps one day, Alison found that the rocks she needed to study are found not far from KU, in the Gypsum Hills of Kansas. Who knew Kansas and Mars were so similar!

Part of Craig Marshall’s job as an associate professor of geology is to play with lasers. He’s a specialist in Raman spectroscopy, which involves using lasers to determine the molecular makeup of matter. Marshall frequently employs this technique to analyze minerals and crystals. One application he’s studying is whether Raman spectroscopy could help scientists find evidence of life on Mars.