- #1
redwards
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Perhaps you'll find these questions child's play. My excuse is I have no training in the field - only curiosity. I suspect there is a single answer to both questions.
Two questions:
1. If, when we examine the distant edges of the universe, what we're really doing is looking back in time roughly 13.7 billion years then why has it taken 13.7 billion years for that light to reach us considering that at the moment that photon began its trip the universe was quite young and small?
2. If, say, the most distant body in the universe from our current position is 13.7 billion light years away will the most distant body 1 billion years hence be 14.7 billion light years away? If so, does that imply the both the Earth and that most distant body are traveling away from the center of the universe at 1/2 the speed of light?
Thanks.
Two questions:
1. If, when we examine the distant edges of the universe, what we're really doing is looking back in time roughly 13.7 billion years then why has it taken 13.7 billion years for that light to reach us considering that at the moment that photon began its trip the universe was quite young and small?
2. If, say, the most distant body in the universe from our current position is 13.7 billion light years away will the most distant body 1 billion years hence be 14.7 billion light years away? If so, does that imply the both the Earth and that most distant body are traveling away from the center of the universe at 1/2 the speed of light?
Thanks.