Ride a jet ski through a re-creation of an Alaska mega-tsunami with the help of science

By Ella Nilsen, Sam Hart, CNN (CNN) — The world’s second-tallest tsunami wave on record tore through the remote Tracy Arm fjord in Alaska last August, leaving immense destruction in its wake. Luckily, there were no people nearby. But in its aftermath, scientists immediately went to work, piecing together what happens when a mountainside collapse