Mind-Reading Rats! Comet to Mars! Spiderman Physics Real!
Description:Scientists have linked the brains of two rats, showing signals from one rat's brain helping the other rat's brain solve a problem. That equals mind-reading. And guess what's whizzing past Mars next October 19? A comet. And finally, physics students have proven that Peter Parker's stunt in Spiderman II -- where spider silk is used to stop a moving subway train -- could really happen. Weird Science is fun!(1:46)