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mayonnace t1_j1j8690 wrote

Reply to comment by [deleted] in Are people in the international space station experiencing time faster than us? by [deleted]

But Wikipedia says, it's 299,792,458 meters per second in vacuum. And we get to see things happening far away way later due to this delaying factor. Like, a star explodes, but we keep seeing it, because its light from past is still on its way.

Also, I still don't get how this is related to time for two colonies living on two different planets. I have a bad feeling that you're trying to mess with me, pal.

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throwawayzufalligenu t1_j1j969b wrote

Spacetime is hyperbolic. Considering time dilation, that speed is instantaneous if you were riding that photon sans mass*.

Here's a comment from a few years ago and its parent with a better worded answer: https://www.reddit.com/r/askscience/comments/n3qgk/if_light_travels_from_one_point_to_another/c361txy/. If you were riding the photon you'd think you teleported but someone on earth you have measured you going at the speed of light.

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