Producing clean fuel with solar power and chemical reactions

Researchers at Arizona State University have published a paper that details how to use light-gathering semiconductors and catalytic materials to produce clean fuels that one day may replace fossil fuels. Hear more about the research from Brian Wadsworth, the lead author of the paper.

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Brian Wadsworth, the lead author of the paper

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'Great Performances at the Met' returns to Sundays at 9 a.m.

"Great Performances at the Met" brings the best of the Metropolitan Opera into the homes of classical music fans across the United States.

Ken Burns presents ‘Country Music’

The new documentary premieres Sunday, Sept. 15, through Wednesday, Sept. 18, and Sunday, Sept. 22, through Wednesday, Sept. 25, at 7 p.m. each night

Return to the world of 'Father Brown'

The charming Father Brown returns to solve more mysteries in the sleepy Cotswold village of Kembleford. The new season starts Saturday, Sept. 14, at 7 p.m. on Arizona PBS.