One thing fans love about Star Trek is its radically optimistic view of the future: A united Earth free of poverty and disease. Starships that take us to strange, new worlds. Food replicators that can satisfy our every craving. It all sounds pretty sweet. But there’s another side to Star Trek that’s equally compelling. Since its inception in 1966, the franchise has explored the messier parts of humanity’s spacefaring future, like interspecies political tensions. It’s a tradition that continues with the eagerly-awaited new series Star Trek: Picard, streaming now on CBS All Access.