title: Stratospheric aluminum oxide.
abstract: Balloons and U-2 aircraft were used to collect micrometer-sized strato-spheric aerosols. It was discovered that for the past 6 years at least, aluminum oxide spheres have been the major stratospheric particulate in the size range 3 to 8 micrometers. The most probable source of the spheres is the exhaust from solid-fuel rockets.
authors.forename: D E
authors.initials: DE
authors.lastname: Brownlee
authors.forename: G V
authors.initials: GV
authors.lastname: Ferry
authors.forename: D
authors.initials: D
authors.lastname: Tomandl