Roger_Kpg_Zumaia_0

Published on May 20, 2016 in Study Pinpoints Timing of Oxygen’s First Appearance in Earth’s AtmosphereFull resolution (150 × 200)

Roger Summons is the Schlumberger Professor of Geobiology with MIT's Department of Earth, Atmospheric and Planetary Sciences

Roger Summons is the Schlumberger Professor of Geobiology with MIT’s Department of Earth, Atmospheric and Planetary Sciences