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Name: Kurt
Status: other
Grade: other
Location: CA
Country: Austria
Date: Fall 2011
Question:
Our telescopes show us that in the far reaches of space seem to be more galaxies and they are moving away from each other with ever increasing speed. scientists say that the moving away from each other is actually "stretching of space," should we not see fewer galaxies for that reason?

Replies:
Dear Kurt,

I think that Hubble's idea of the expanding Universe means that the superclusters of galaxies -- not the galaxies or clusters,. but the clusters of clusters, are actually moving apart from each other. They have been doing this since the Big Bang. We do not see the farthest galaxies because their light has not reached us yet,

Good question! Sincerely

David H. Levy


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