Manned high-altitude balloons were used from the 1930s to 1960s for research and in seeking flight altitude records . Notable manned high altitude balloon flights include three records set for highest skydive , the first set by Joseph Kittinger in 1960 at 31,300 m for Project Excelsior , followed by Felix Baumgartner in 2012 at 38,969 m for Red Bull Stratos and most recently Alan Eustace in 2014 at 41,419 m
Red Bull Stratos
Red Bull Stratos
High-altitude balloon