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NOVA is the highest rated science series on television and the most watched documentary series on public television. It is also one of television's most acclaimed programs, having won every major television award, most of them many times over.

“The Pluto Files”—featuring NOVA scienceNOW host, Neil deGrasse Tyson—is premiering two weeks from today on Tuesday, March 2nd. Here are some light and funny celebrity promos starring Diane Sawyer, Brian Williams, Stephen Colbert, and John Stewart: