Continuing his streak of emotionally intelligent globe-trotting documentaries, Werner Herzog’s “Fireball: Visitors From Darker Worlds,” which he co-directed with University of Cambridge volcanologist Clive Oppenheimer and premiered on Apple TV+, is a rich speculative examination of the role of meteorites on religion, art, and society. While the film is somewhat casual in how it jumps between ideas, Herzog and Oppenheimer show a profound curiosity about the role of otherworldly meteors in creating our planet, and its possible destruction.