<p>Atul Gawande is a member of President-elect Joe Biden’s COVID task force. He helps us dig through the latest coronavirus news including vaccine trial results, mask mandates, and how to manage risks over the holidays.</p>

Our Fishy Ancestors Grew a Pair (of Legs)

Bill Nye is on a mission to change the world — one voicemail at a time. Bill and science writer Corey S. Powell take your burning questions and put them to the world's leading experts on just about every topic in the universe. Should you stop eating cheeseburgers to combat climate change? Could alien life be swimming inside the moons of Jupiter and Saturn? Does your pet parakeet learn to sing the way that you learned to speak? Bill, Corey, and their special guests will answer those questions and convince you that... science rules!