Geophysicist Defends Science of Licking Rocks in THE LAST JEDI and DOCTOR WHO

One of the funniest moments in The Last Jedi happened on Crait, when a Resistance soldier touched the ground, licked his finger, and said, “Salt.” Most people don’t taste rocks to figure out what they are made of, but it turns out the joke’s on us, because a geoscientist has explained why it was a totally reasonable thing to do. This week on Twitter, EW‘s Dana Schwartz had what seemed like the right response to a method used for determining the difference between a rock and a...


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