Nomad

When an interstellar comet passes near the Earth, one of our scientists, Alison Arbor, a woman with Asperger’s, suspects it carries a message. What if someone wrote their name on it? What if it's a billion-year-old message in a bottle drifting through space? She convinces Nasa and eccentric billionaire Alan Green, to rapidly divert a mission to it. The crew reach the comet, find its inner structure is actually built, but their return to Earth is surrounded by mysterious circumstances. These circumstances undermine what is possibly the greatest scientific discovery known to the world.