Looking in the Wrong Place
The observable universe is jammed with billions of galaxies, which in turn are packed with trillions of stars and who knows how many planets. So wouldn’t you think the chances of intelligent life, other than ourselves, exists in one of these faraway places? Or are we looking in the wrong place?
Minutephysics host Henry Reich says, “Researchers have predicted that the population of most intelligent alien species should be below 20 million individuals; the majority of planets with intelligent life should have less than 80 percent the radius of the Earth; and the individuals of most intelligent alien species should be at least as massive as polar bears.” Where do we find these species? Reich explains in this edition of minutephysics.