High-altitude ballooning

High-altitude ballooning involves launching large balloons filled with lighter-than-air gases like helium or hydrogen into the atmosphere. These balloons carry instruments, cameras, or scientific equipment to near-space altitudes—often over 100,000 feet—where conditions resemble those of outer space. This allows researchers to study atmospheric phenomena, collect data, or test technology in extreme conditions. The balloon ascends slowly and reaches a peak altitude before eventually descending back to Earth, often with a parachute. It’s a cost-effective way to explore high-altitude environments without the need for rockets or aircraft.