
(Kyodo / Aug 4, 2003)MITO, Japan - An unmanned airship filled with air and helium stands ready to be flown into the stratosphere at the National Aerospace Laboratory of Japan (NAL) in Hitachi, Ibaraki Prefecture on Aug. 4. ...successfully sent the airship into the stratosphere later in the day, marking the world's first such flight to ... an altitude of 16.4 km ..