If you want to sleep tonight, skip this episode of StarTalk All-Stars. Bill Nye, Chuck Nice and virus expert Laurie Garrett examine how we’re fighting Zika, Dengue, West Nile, HIV and other viruses – and why the battle may not be going our way.
Neil deGrasse Tyson, your own personal astrophysicist, answers your questions about dark matter, black holes, light, time, relativity and the fabric of our universe in your favorite Cosmic Queries episodes of Season 4.