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Scientists study rare dinosaur skin fossil at CLS
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Anonymous Coward |
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*Light-years are units of distance, not time.
Look up gravitational time dilation.
Quoting: Anonymous Coward 39092863 Light year = the distance light has traveled in a (earth) year. It's a measure of both distance and time that light travels. Point is, if 2.5 million years hadn't passed, we wouldn't see the Andromeda galaxy. If the universe was only 6,000 years old, it would take 2,4994,000 years for observers on earth to see the light from the Andromeda galaxy. That 5 minute vid answers that. Dr. Jason Lisle will explain it better than me here.
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