The trip to Proxima Centauri might only take 4.3 years, so upon the traveller's return to Earth they may have only aged 8.6 years, everyone they knew will be dead as 170 years would have elapsed on Earth
And this is why biological space travel beyond our solar system is just pointless for all but those who don't mind coming back to a world that's completely different, or no longer exists...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.