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the claim
Falcon 9 uses RP-1 and LOX rather than hydrogen for higher density and simplified storage
the verdict
SUPPORTED
the evidence backs this
confidence 83/100

Falcon 9 uses RP-1 (a refined form of kerosene) and liquid oxygen (LOX) as propellants to achieve high density and simplified storage compared to cryogenic hydrogen.

Evidence for · 2
Atmospheric pollution from rockets
2022 · cited by 20
Paper 1 explicitly models the Falcon 9 rocket as using RP-1 as the propellant and liquid oxygen as the oxidizer.
See more details
More for · 1
Estimating CO2 emissions due to present and future suborbital space tourism industry.
2025 · cited by 0
Paper 10 notes that kerosene (RP-1) and dense hydrocarbons are utilized in various rockets for operational and physical characteristics compared to hydrogen.
The paper trail · every fact has a biography
first checked01 Aug 2026
judged → SUPPORTED · 8301 Aug 2026
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