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Chris Impey

UA testing vast, open online courses

The best-enrolled course at the University of Arizona this semester could be a virtual one.

March 28, 2013 12:00 amLoading…

Find out 'How It Began' on Monday as cosmologist discusses big bang

The big-bang theory is familiar enough to the general public to be the name of a TV sitcom, but if you'd truly like to understand it, you might begin with a talk Monday by cosmologist Chris Impey of Steward Observatory.

September 23, 2012 12:00 amLoading…

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