Why Distant Galaxies Are Red? 🌌 Redshift In Astronomy

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Why Distant Galaxies Are Red? 🌌 Redshift

Credit: NASA's Goddard Space Flight Center
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Wow I love your channel! Thanks for sharing thise precious videos.

danielhenriquedearaujo
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Funny how light is redshifted leaving a black hole and is spaghettified entering a black hole.. but spaghettified means being stretched, so that means light is being stretched throughout its entire journey through the universe and is solely because of gravity.. so why did someone come up with expansion?

dexter
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How do you get the initial wavelength from the star? This is the reference point and without that you cannot complete the calculation because you wouldnt know how much shift occurs correct?

thedirtytruth