In a time where it's easy to feel a bit concerned about the fate of civilization -- take your pick of calamities, really -- National Geographic's Cosmos is like a hope-filled salve. Developed by Ann Druyan, the co-creator of the original show together with her husband Carl Sagan, and hosted by Neil deGrasse Tyson, Cosmos: Possible Worlds is an exploration of humanity, our past, present and our potential future. The 1980 series redefined how complex topics could be communicated on TV. And with Possible Worlds, Druyan and her co-writer, Star Trek alum Brannon Braga, recapture that magic. But, it's delivered with a new sense of urgency for our turbulent era, which is fueled by climate change and political instability.