Timeline for Is the age of the universe different for a returning space traveller?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Mar 17, 2017 at 11:45 | comment | added | Thriveth | @P.Doe It's the good old Twin Paradox over again. In terms of relativity, a round trip to and from the Earth would require acceleration, which certainly is not inertial motion. Therefore the astronaut's perceived time is not equivalent to that of the Earth. | |
| Mar 16, 2017 at 0:32 | vote | accept | Paul | ||
| Mar 1, 2017 at 23:00 | comment | added | Paul | Thanks. I guess your statement that "The astronaut will have aged less, but to this person, the surrounding Universe will just seem to have aged more quickly" doesn't violate the theory that the laws of the universe are the same for all observers in uniform motion - because the astronaut was not in uniform motion with the planet. So I guess it's ok for them to have experienced two different ageing rates of the universe? I think that would answer my question. | |
| Mar 1, 2017 at 3:16 | history | answered | Thriveth | CC BY-SA 3.0 |