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As founder of HowStuffWorks Marshall will be covering a wide range of topics from computers and technology to the environment.

- Marshall Brain

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Good Question - What is the universe expanding into?

by Marshall Brain

What is the universe expanding into? Does the universe have a center? Is energy conserved in an expanding universe? Here are the answers from Sean Carroll’s cosmology FAQ:

Cosmology Primer

See also Hubble’s discovery of the expanding universe: