Photocatalysis involves three fundamental steps: light absorption, charge separation and transfer, and chemical reactions.

Aquino's downtown Los Angeles court arraignment was continued Tuesday afternoon. He is being held on zero bail.

Democratic Rep. Steven Horsford ripped Jamieson Greer, the U.S. trade representative, as news of the reversal broke.

Prosecutors have dropped a charge against a man who Republican Rep. Nancy Mace claimed “physically accosted” her in December, ...

A youth soccer coach who was reportedly questioned in the death of one of his teen players, was arrested on a separate sexual ...

Governments from across the world are gathering in London this week to thrash out a landmark global carbon charge for the ...

Thailand authorities have summoned American academic Paul Chambers to face charges of "insulting or showing malice towards ...