We delve into the signals we send and receive from space and examine whether we are alone in the universe. 

In the premiere episode of Entropy we explore time travel. From supposed time travelers who have appeared throughout history, to the physics of whether it is possible, to its ultimate consequences.

Entropy is a new podcast that explores profound ideas, from the nature of time, to the mysteries of humanity, to the ultimate fate of the universe. Each episode delves into a new issue, using science, history, and philosophy to peel back the layers of...