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Stupid question
Can someone help me understand this ?
The powerful telescopes are supposed to see in the past. OK, I get thet. If you look at a distant star, you catch the light it emitted one year ago if it is at one light-year distance. But you cannot see the light it emitted 2 years ago, for that light has already travelled past you. Correct ? Now, some say they can watch light coming from stars created just after the big bang. This I cannot understand, because that light should have travelled past us already, from the original point. Please explain ... |
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