abyssal seafloor Archives - Astrobiology

Polymetallic nodules, also called manganese nodules, on the floor of the Pacific Ocean; surprising new research suggests deep sea rocks are capable of producing oxygen without help from plants or the sun. Photo via Wikimedia Commons/Geomar Bilddatenbank/ROV KIEL 6000, GEOMAR

Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Status Report

Extraordinary Claims Require Extraordinary Evidence: Evaluating Nodule-associated Dark Oxygen Production (opinion)

by Keith CowingDecember 19, 2025December 19, 2025

Editor’s note: this is a response to Oxygen Produced In The Deep Sea Raises Questions About Extraterrestrial Life, Boston University 27 August 2024