Water/Hycean Worlds & Oceanography In Ancient Oceans That Resembled Our Own, Oxygen Loss Triggered Mass Extinction Press Release November 26, 2019
Extinction events Tiny Shelled Creatures Shed Light On Extinction And Recovery 65 Million Years Ago Press Release March 1, 2010
Extinction events NASA Study Shows Asteroids May Have Accelerated Life on Earth Press Release May 9, 2009