SIO391: Astrophysicist Wet Blankets All The Alien Talk

Astrophysicist Dr. Bryan Gillis explains why recent phenomena are unlikely to be aliens. They discuss the conditions for life in the universe, estimating intelligent life using the Drake equation, limitations of visual imaging of exoplanets, and the challenges of interstellar communication. They explore the rocket equation and improving propulsion in space travel, feasibility of meeting aliens, and hypothetical scenarios of aliens visiting Earth. The chapter ends with discussions on faster than light travel and time travel concerns.