We may receive a commission on purchases made from links. Are we alone in the universe? It's a huge question with no easy answer. And, following on from that, if we aren't alone, what would beings ...

With a timeline as knotty as a Xenomorph's biomechanical skeleton, it's not the easiest thing in the world to work out how to watch the Alien movies in order. Alien: Earth's first season wrapped up ...