Astrobiology Magazine’s field research editor Henry Bortman is spending a week alongside scientists and astronauts in the field at Pavilion Lake. In Bortman’s fifth report, he talks with astronauts participating in the Pavilion Lake Research Project. The astronauts are aiding scientists in exploring the unique lake by piloting the DeepWorker submarines that are used to examine microbialites lining the lakebed. Visit Astrobiology Magazine now to ask questions of researchers in the field and watch their video responses.