Witness the longest insect migration on earth—and the decades-long passion of one scientist—as the mystery of the monarchs unfolds in Flight of the Butterflies, which opens this Saturday, January 5, in the Museum's LeFrak IMAX Theater. Watch the trailer. 

The United States leads the world in frequency of tornadoes, with over 1,000 twisters expected to hit each year, according to the NationalClimatic Data Center.  Nowhere are they more likely to occur than in Florida and a large area of the south-central U.S. known as Tornado Alley—the eponymous subject of the heart-pounding new IMAX film now showing on the big screen at the Museum’s Samuel J. and Ethel LeFrak Theater.