James Webb Captures Oxygen Signature on Proxima Centauri b - r/space

NASA released James Webb Space Telescope spectroscopy data suggesting Proxima Centauri b has an oxygen-containing atmosphere, the closest exoplanet to Earth and the first to show this signature at 71,000 upvotes on r/space. Three of the research paper authors ran an AMA for six hours answering questions from the Reddit community in a pinned thread. Carl Sagan quotes flooded the comments, with the top comment noting Sagan died exactly 30 years before the discovery announcement.