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Our galaxy on collision course with Andromeda


robbie c

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That would be how long it would seem to those left on Earth, but it's very different for those traveling at the high speed.

Apparently, if you were able to travel at the speed of light then from your point of view you would arrive at your destination instantly, but to an observer who's not moving it would take how ever long it would take for light to reach that destination.

Nope, it would take 2 million years from the POV of the travellers. Time dilation effects would make it appear longer to those remaining behind. :hello2:

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