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Late-game interstellar transit is also discussed using much larger rockets. At the mid to late game, metallic hydrogen rockets will use magnetic fields to shape their thrust.
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Producing this fuel in space will be a major focus of planetary colonies. The second new tech is metallic hydrogen, a theoretical fuel that burns with strength profoundly greater than the oxidized liquids used in the original Kerbal Space Program's highest-end rockets. Kerbals, however, have no fear and are ready to use nuclear propulsion to the fullest.
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Included first is nuclear propulsion, a real-life concept that was scrapped due to everyone's fears of using actual nuclear bombs to get around the solar system.
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