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Q: astronomy ( Answered,   0 Comments )
Subject: astronomy
Category: Miscellaneous
Asked by: player55-ga
List Price: $2.00
Posted: 29 Mar 2003 19:34 PST
Expires: 28 Apr 2003 20:34 PDT
Question ID: 183056
What ulitmately limits how far away we can see in the universe?
A) the size of our telescope
B) the age of the universe
C) the size of the universe
D) the material of the universe
E) there is no ultimate limit on observable distance
Subject: Re: astronomy
Answered By: sldreamer-ga on 29 Mar 2003 20:20 PST
Hi player55,

The answer to your question is:

B) the age of the universe 

According to an article written by Kitty Ferguson:

"How far we can see is limited by the age of the universe. If the
universe is one billion years old and the edge of the universe (if
there is one) is two billion light years away, then light from the
edge of the universe can only have travelled one billion light years
and hence will not have reached us."

Source: "Measuring the Universe" by Kitty Ferguson, November 1999.

Search strategy:

"+how far" see universe limited age

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