Alphabet's Loon claims the record for longest stratospheric flight of 312 days while circumnavigating the globe, with one of its balloons (Steve Dent/Engadget)

Steve Dent / Engadget:
Alphabet's Loon claims the record for longest stratospheric flight of 312 days while circumnavigating the globe, with one of its balloons  —  Google parent Alphabet has revealed that one of its Loon balloons spent 312 days aloft, breaking its previous stratospheric flight record of 223 days, by a wide margin.