If space didn't expand/accelerate, would photons keep zipping along forever in the same wavelength in which they were emitted? - eviltoast
  • niktemadur@lemmy.worldOPEnglish
    1·
    3 months ago

    Sure, that I do get, it’s just that I’m guessing my local movement at the speed of light for a moment can blueshift a radiowave or microwave photon only a fraction of what is needed to get it into the visible light spectrum, surely never all the way to ultraviolet or gamma rays.