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| Description: Cosmological Redshift Just as the waves drawn on this rubber band are stretched along with the rubber band, so too are the wavelengths of photons stretched as the universe expands Picture Stats: Views: 1021 Filesize: 170.63kB Height: 900 Width: 965 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18772 |