In this latest episode of Distillations, we ask the age-old question: are we alone in the universe? First, a segment about how two famous cosmologists battled it out over the Big Bang. Then, producer Andrew Stelzer visits the SETI Institute to learn about the search for extra terrestrial life, and, once we find it, how we’ll go about making conversation. If you’re a space nerd like me, you’ll love hearing the Arecibo message. It’s like an intergalactic techno song. So cool.

Image courtesy of NASA.