Dan is not a cosmologist, and does not play one on TV. But, he’s an avid reader of popular science about cosmology and astrophysics, and is the author of a book chapter debunking creationism with cosmological arguments: https://dandana.us/atheism/creationism.htm
Dan discussed recent findings about the Big Bang Theory, dark energy, dark matter, black holes, gravitational waves, cosmic background radiation, multiverse speculations, the ultimate fate of the universe, and other related topics.