Pegasus

American air-launched solid-fuel small-lift rocket

Pegasus is the air-launched oddity: a winged rocket dropped from under an L-1011 jet at 12 kilometres, then ignites and climbs to orbit on its own. It's been around since 1990 and lifts very small satellites; its last flight was in 2021, with a mission to reboost NASA's Swift telescope planned for 2026.