Space/Science — HabitableZone

Space/Science » in reply to Needing an answer to a hard Sci-fi question.

Re: Needing an answer

The most effective way to reach relativistic speeds in science fiction without invoking some kind of technomagic is by using some version of a Bussard ramjet or a light sail. Even if one used photon rockets and matter-antimatter, it would be difficult to attain any reasonable fractions of C with onboard propellant alone. Of course, technologically speaking, the other two options are no piece of cake either.

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