"Star Wars: The Force Awakens" and "Avatar" are the top-grossing science fiction films.

Sci-fi films typically dominate the box office for premiere weeks. Earlier this year "Black Panther" made more than $1 billion, and last month "Avengers: Infinity War" made $1.5 billion. The upcoming "Solo: A Star Wars Story" is also projected to have huge success.


So, why are people fascinated with fantasy and science fiction?


 On Second Thought host Tony Harris speaks with Georgia Tech professor Lisa Yazsek.

This season on AMC James Cameron sat down with the big names behind those sci-fi movies. The series featured George Lucas, Steven Spielberg, Christopher Nolan and more. Also featured in all six of the episodes is Georgia Tech science fiction professor Lisa Yaszek. She talks with “On Second Thought” about her experience working on “James Cameron’s Story of Science Fiction” and the world of science fiction.