{"dataset":{"slug":"rocket-stages","title":"Rocket Stages","description":"First-class booster, core, and upper stages of flagship launch vehicles.","version":"1.0.0","lastGenerated":"2026-06-29","license":"CC BY-SA 4.0","entityCount":10,"sources":["nasa"]},"entities":[{"id":"rocket_stage:ariane5-epc","name":"Ariane 5 core stage (EPC)","type":"rocket_stage","domain":"science","description":"The Ariane 5 cryogenic main stage (Étage Principal Cryotechnique), powered by a single Vulcain 2 engine burning liquid hydrogen and liquid oxygen.","entryPath":"/rockets/ariane5-epc"},{"id":"rocket_stage:ariane5-eap","name":"Ariane 5 solid boosters (EAP)","type":"rocket_stage","domain":"science","description":"The pair of large solid rocket boosters (Étage d'Accélération à Poudre) that provide most of Ariane 5's liftoff thrust.","entryPath":"/rockets/ariane5-eap"},{"id":"rocket_stage:falcon-9-first-stage","name":"Falcon 9 first stage","type":"rocket_stage","domain":"science","description":"The reusable Falcon 9 first stage, powered by nine Merlin 1D engines and recovered by propulsive landing on a droneship or landing pad.","entryPath":"/rockets/falcon-9-first-stage"},{"id":"rocket_stage:falcon-9-second-stage","name":"Falcon 9 second stage","type":"rocket_stage","domain":"science","description":"The expendable Falcon 9 upper stage, powered by a single vacuum-optimized Merlin engine.","entryPath":"/rockets/falcon-9-second-stage"},{"id":"rocket_stage:s-ic","name":"S-IC (Saturn V first stage)","type":"rocket_stage","domain":"science","description":"The Saturn V first stage, powered by five F-1 engines burning RP-1 and liquid oxygen — the stage that generated the Saturn V's ~34 MN of liftoff thrust.","entryPath":"/rockets/s-ic"},{"id":"rocket_stage:s-ii","name":"S-II (Saturn V second stage)","type":"rocket_stage","domain":"science","description":"The Saturn V second stage, powered by five J-2 engines burning liquid hydrogen and liquid oxygen.","entryPath":"/rockets/s-ii"},{"id":"rocket_stage:s-ivb","name":"S-IVB (Saturn upper stage)","type":"rocket_stage","domain":"science","description":"The restartable single-J-2 upper stage used as the Saturn V third stage and the Saturn IB second stage; its restart performed trans-lunar injection for Apollo.","entryPath":"/rockets/s-ivb"},{"id":"rocket_stage:sls-core","name":"SLS Core Stage","type":"rocket_stage","domain":"science","description":"The SLS core stage, powered by four RS-25 engines (repurposed Space Shuttle main engines) burning liquid hydrogen and liquid oxygen.","entryPath":"/rockets/sls-core"},{"id":"rocket_stage:sls-srb","name":"SLS Solid Rocket Booster","type":"rocket_stage","domain":"science","description":"The pair of five-segment solid rocket boosters, derived from the Shuttle SRBs, that provide most of the SLS's liftoff thrust.","entryPath":"/rockets/sls-srb"},{"id":"rocket_stage:shuttle-srb","name":"Space Shuttle Solid Rocket Booster","type":"rocket_stage","domain":"science","description":"The pair of reusable solid rocket boosters that provided most of the Space Shuttle's liftoff thrust before being recovered from the ocean by parachute.","entryPath":"/rockets/shuttle-srb"}]}