The newer study agrees that the composition of Venus’s atmosphere is unusual but not that it is evidence for life.
Scientists are making observations that add to Denton’s case, further constraining the requirements for habitability.
For photosynthesis to proceed on a planet like Earth, sunlight (visual light) must penetrate the atmosphere all the way to the ground.
Loeb describes his journey to a radical position on the strange interstellar visitor that’s been dubbed ‘Oumuamua.
In this third of three episodes with Stephen Meyer, James Tour draws from questions sent in by listeners to his own podcast.