LEHIGH VALLEY, Pa., Aug. 21, 2025 /PRNewswire/ -- Air Products (NYSE: APD), the world's leading supplier of hydrogen, today announced it has successfully completed the first fill of the world's largest hydrogen sphere at the National Aeronautics and Space Administration's (NASA) Kennedy Space Center located on Merritt Island, Florida. NASA uses liquid hydrogen combined with liquid oxygen as fuel in cryogenic rocket engines.To complete the fill, Air Products delivered over 50 trailer loads of liquid hydrogen ...