How Realistic Are the Planets in Sci-Fi?

At NASA’s Jet Propulsion Laboratory visualization specialist Robert Hurt breaks down the plausibility of sci-fi planets and galaxies in “Star Wars,” “Star Trek,” and “Alien."

Save videos for later by signing up or logging in

With "My Queue" you can quickly save videos to watch later.

To add an item to your queue just click the sign next to the video.

Once you've added a video visit "My Queue" to start watching!