Contains spoilers for "Avatar: Fire and Ash" James Cameron, who shepherded the "Avatar" franchise into a multi-billion dollar success, has said how "Avatar: Fire and Ash" is the conclusion of this ...

For the quickest way to join, enter your email below. We’ll send a confirmation email and sign you up to Space.com newsletters with the latest inspiration, expert advice and exclusive offers.

James Cameron has given us a whole new sci-fi world with dazzling visuals in the "Avatar" franchise. Thanks to advanced technology, some of which Cameron and his crew had to invent for themselves, the ...