The UnXplained — Episode 4: Apocalypse When?

You are watching the episode Apocalypse When? Since the dawn of civilization, humanity has been fixated on predicting our own demise. Perhaps it will be asteroids, black holes, or something even more mysterious that will wipe us out. But is there anything we can do to predict the future and protect ourselves from apocalypse? Will our civilization end--or will we find a way to evolve and endure?