The global population is growing, but do you know which city is biggest? These are the most populated cities in the world.

The mill, which is part of the recent merger between U.S. Steel and Nippon Steel, has faced scrutiny from federal and local ...

An explosion at a U.S. Steel plant near Pittsburgh left one person dead and sent at least 10 to hospitals and heavily damaged ...

Authorities said their investigation has shifted to the cause of the explosion after they accounted for everyone who was missing.

Bill Nye Answers Even More Science Questions From Twitter are allowed to have nuclear weapons. Anybody else is not allowed ...

Officials are working to determine the cause of an explosion that rocked a steel plant outside Pittsburgh, leaving two dead and 10 injured ...

Trisha Quinn is searching for her brother who she says was working at the time of multiple explosions at the U.S. Steel ...

The word embryo usually implies the beginning of life, not a three-decade pause button. Yet in late July, an Ohio couple ...

Senior Director of Job Quality at the National Women's Law Center Julie Vogtman breaks down the latest data regarding working mothers.