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UMaine teachers on NOVA 

Two University of Maine professors will appear on prime time television tonight.Paul Mayewski, director of the University’s Climate Change Institute and assistant research professor Andrei Kurbatov, will be featured on a segment of nova called “Last Extinction.”The program explores the theory that a comet hit earth thousands of years ago, and wiped out several giant mammoths and large animals.Mayewski was on a research team that discovered the presence of nanodiamonds in an ice sheet in Greenland.The nanodiamonds are believed to have been created by the impact of the comet.