Safely meaning they wouldn't have to feel a G force over 2Gs. Assuming we had technology to reach any feasible speed under light speed. Also, how long would it be relative to Earth?


marked as duplicate by Rob Jeffries, heather, John Rennie general-relativity Feb 7 '17 at 8:19

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  • $\begingroup$ A basic calculation is possible using these equations. Note that how long depends on whether you mean from the traveler's point of view or Earth's - time dilation. $\endgroup$ – StephenG Feb 6 '17 at 22:28
  • $\begingroup$ Getting rid of G-force using e.g. strong magnetic fields perhaps also involving implanting magnetic materials in the body seems to be technologically trivial compared to the challenges of interstellar space travel. Such a technology could also allow for a spacecrafts to make a hard 100 G landing without the astronauts getting injured. $\endgroup$ – Count Iblis Feb 6 '17 at 22:48
  • $\begingroup$ Also physics.stackexchange.com/questions/109776/… $\endgroup$ – Rob Jeffries Feb 6 '17 at 23:23