Simone Biles claimed her seventh U.S. gymnastics title last weekend, in part thanks to an impeccably executed triple-double (a.k.a. three twists performed during two backflips). A short clip captures the star athlete, who hasn’t lost an all-around competition in eight years, as she completes the perfect sequence in extreme slow motion—you might want to watch the full routine first for perspective—showing how she gently turns herself over in two backflips before launching herself multiple feet into the air. After a seemingly gravity-defying series of flips and bends, she nails the landing in an absolutely stunning feat. (via Kottke)