Photo Gallery: RED-4U Prototype Capsule High Altitude Balloon Release - SpaceWorks Enterprises, Inc.
High-altitude balloon - Wikipedia
Here's how high-altitude balloons work | CNN
Aerospace | Free Full-Text | Dynamic Characterization of a High-Altitude Balloon during a Flight Campaign for the Detection of ISM Radio Background in the Stratosphere
High-altitude balloon experiment platform | ANU Research School of Astronomy & Astrophysics
UK selects high-altitude balloon as military satellite | Popular Science
NATO Science | High-altitude balloon-borne radar - YouTube
Improving Weather Data Using High-Altitude Balloons | NASA
NASA Mission Will Study the Cosmos With a Stratospheric Balloon | NASA
How Much Weight Can A High Altitude Weather Balloon Carry? - StratoStar
The Ultimate High Altitude Weather Balloon Data Logger : 9 Steps (with Pictures) - Instructables