De Rozier's experimental system consists of a hydrogen balloon and a hot air balloon tied together. Tragically, the craft explodes half an hour after takeoff. This double balloon helium/hot air ...
But people flew much earlier than that by using hot air balloons as well as gas-filled ... For example, the craft had air bottles to sample the atmosphere at different altitudes.
When the hot air balloon initially took off on Sunday ... to its large "drop zone" - an area where skydivers can land. The craft will be brought to a secure facility for additional evaluation ...