Watch: NASA Scientist Breaks Down Star Wars Droids

Check out a video above of a NASA scientist breaking down the droids of Star Wars.

Brett Kennedy, a roboticist at NASA’s Jet Propulsion Lab, breaks down the plausibility (or lack thereof) of Star Wars characters like R2-D2, C-3PO and the new BB-8.

“Star Wars: The Force Awakens” has a December 18, 2015 release directed by J.J. Abrams from a screenplay by Lawrence Kasdan and Abrams. Kathleen Kennedy, J.J. Abrams, and Bryan Burk are producing, and John Williams returns as the composer.

Actors John Boyega, Daisy Ridley, Adam Driver, Oscar Isaac, Andy Serkis, Domhnall Gleeson, Max von Sydow, Lupita Nyong’o and Gwendoline Christie will join the original stars of the saga, Harrison Ford, Carrie Fisher, Mark Hamill, Anthony Daniels, Peter Mayhew, and Kenny Baker in the new film.