STORIES

Filter by:

Surprise in the Sargasso

In some of Earth’s most extreme environments — Antarc- tica’s frigid ice fields, Yellowstone’s sulfuric hot springs, Crater Lake’s lightless depths, the oceans’ deep-sea basalts — Stephen Giovannoni has discovered thriving communities of bacteria. As the holder of the Emile F. Pernot Distinguished Professorship in Microbiology, he has discovered some of the most abundant life forms on the planet.