Planet Hunters
Planet Hunters: The Search for Earth's Twin (original)
The Holy Grail of space science is the discovery of a planet just like ours: the right size, the right orbit around its sun, not too hot, not too cold - in the area dubbed the Goldilocks Zone. For millennia humans studying the stars had no idea if there were any other planets outside our solar system, let alone able to sustain life. Are we alone in the universe? We may be close to finding out.
Starring
Watch "Planet Hunters" from streaming services Amazon, Tubi TV released in 2012. It's a documentary movie, and has a rating of 7.2 out of 10 from Imdb which is usually fine for this kind of movie.