This episode explores Composition, pressure, greenhouse warming and the evidence gathered by spacecraft and telescopes. The story keeps the mechanisms clear and the research grounded for a casual listener. Inside this episode: - What is there now - Rocky planets release gas - The water question - A runaway greenhouse - Why the gas stays Sources include NASA Science, Venus Facts, NASA, DAVINCI mission science, and NASA, Magellan mission. This episode is a researched narrative summary. Historical records may be incomplete, translated differently, or interpreted differently by scholars. We distinguish documented facts, estimates, disputed interpretations, and later stories where material. Corrections are logged and incorporated into future editions. Follow Solar System Field Notes for more researched stories about the evidence that reveals our sol ...