Beneath Antarctica's Lake Untersee, microbial communities offer a glimpse into Earth's ancient past. SETI Institute astrobiologist Dale Andersen is returning to this remote, ice-covered lake to study its geological history and microbial ecosystems, with implications for the search for life on Mars and icy moons. Follow the expedition: https://www.seti.org/news/preview-fall-2026-lake-untersee-field-season/