What's made Star Trek endure so long?

Working in Star Trek, my number one concern is, is it going to be popular tomorrow? That's why we're always striving so hard to make the show as great.Why has it endured this long? It is the fact that it's good science fiction, and people like science fiction. There's a certain level of quality in the writing and the production values, that you know you'll get with Star Trek.

It depicts a positive vision of the future, which is not very common in science fiction. A lot of science fiction's very apocalyptic and grim, but Star Trek is something that you could share with your kids. People like tuning in to something that's a little reassuring to them. It's a universe that they know and understand and appreciate, so they go back to it.