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[Image above] Credit: Reactions; YouTube

The seventh installment of the Star Wars film saga—“Star Wars: The Force Awakens”—premieres in theaters tonight.

To prep for all the fun from the newest episode of the film saga that redefined movies, let’s overthink the science.

Is the Death Star laser feasible? Are plasma lightsabers even remotely possible? Can we build a real-world force field?

The American Chemical Society’s Reactions video series mulls over the science behind the answers below.

Credit: Reactions; YouTube