Tornadoes, Lightning in Rare Video

April 3, 2009—As tornado season touches down in the U.S., see a high-tech tornado chaser's stunning footage of twisters—and of lightning as you've never seen it, in superslow motion. EDITOR'S NOTE: Tragically, Tim Samaras died in an Oklahoma tornado May 31st, 2013, along with his son Paul, and Carl Young, a frequent partner of Tim's. Read here for more on his death. And click here for a compilation of Tim's videos on National Geographic.