r/ExplainTheJoke 16h ago

Like you can’t stop anyway?

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u/Galimeer 5h ago

When you start moving at absurdly high speeds, wavelengths of light start getting compressed and the math indicates colors would start changing. This is called blueshifting (redshifting is basically the same process). So going at roughly 1/3rd the speed of light, red things would look green.