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Q&A Is it necessary for spaceships to include reverse thrusters for deceleration in space?

Set in the not so distant future, space travel becomes commonplace but is limited within the heliosphere. I'm thinking since it is fuel efficient and more economical to use gravity assist to slow d...

6 answers  ·  posted 5y ago by user6760‭  ·  last activity 5y ago by user6760‭

Question space travel spaceships technology space-travel ships rockets