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"lightyears" = time not length
so the images the telescope receives are how those galaxies looked xlightyears ago.
EX. if a planet is 7 lightyears away, and blew up this second, we wouldnt notice for another 7 years
cue that smiley lol
so the images the telescope receives are how those galaxies looked xlightyears ago.
EX. if a planet is 7 lightyears away, and blew up this second, we wouldnt notice for another 7 years
cue that smiley lol