The Numbers Say Aliens Are Out There—So Where Are They?

In this episode of Spaced Out , we look at one of the most fascinating questions in science: why haven't we found any aliens? Before we explore the many theories that try and explain this, I walk through the Drake equation - a super useful way to think about how many intelligent civilizations could be out there. It's not so much a strict calculation as it is a framework for searching for life.…