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Q&A: Cosmology

Q:
Where on the web can I find a picture of the structure of the universe? The universe as currently mapped shows a fibrous structure, with large voids of about 150 million light years across. This picture, I presume, comes from light that started traveling from these galaxies several million years ago. Does this mean this picture was formed before the galaxies (or clusters of them) had a chance to travel much relative to each other?

A:
For a good image of the large scale structure of the universe try NASA's Astrophysics Data Base and searching the reference below.

Reference: M. Geller, L. da Costa, J. Huchra, and E.Falco, Astrophysical Journal Letters, 424, L1 (1994).


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