Greg Cooke
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gjcooke.bsky.social
Greg Cooke
@gjcooke.bsky.social
Exoplanets postdoctoral researcher at the Institute of Astronomy, University of Cambridge
A preprint this morning on our recent work regarding how changes in atmospheric oxygen can affect the upward propagation of hydrogen atoms in Earth’s atmosphere 😁

egusphere.copernicus.org/preprints/20....
The Oxygen Valve on Hydrogen Escape Since the Great Oxidation Event
Abstract. The Great Oxidation Event (GOE) was a 200 Myr transition circa 2.4 billion years ago that converted the Earth's anoxic atmosphere to one where molecular oxygen (O2) was abundant. This rise i...
egusphere.copernicus.org
March 31, 2025 at 2:53 PM