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Q&A Fusion- or antimatter-powered propulsion: Which one will we likely develop first?

In terms of scientific and engineering challenges, which one is closer to fruition? Specifically I am looking for the feasibility of using one of these systems for space-only travel between the orb...

4 answers  ·  posted 4y ago by Jem‭  ·  last activity 4y ago by Jem‭

Question space travel space-travel fusion propulsion