http://apcnasa3ozl2j74htizuzba5b6nhugbg2qze2nrz43siunkct555fpid.onion
Propellant Type Earth-Storable (Room Temp.) - N 2 H 4 , HAN (Army LP), NTO/MMH, NTO/N 2 H 4 ["Dual-Mode"] Space-Storable (Cryogenic) "Soft" Cryogens (>~100 K) - O 2 , CH 4 , F 2 , OF 2 , ClF 5 "Hard" Cryogens (<100 K) - H 2 , Slush H 2 HEDM (High-Energy Density Materials) "Additives" (Near-term energetic molecules added to a conventional propellant) Strained Rings, High-Energy Fuels or Oxidizers Cryo Solid/Liquid Hybrid (Put high-energy species in solid matrix in a hybrid solid/liquid...