Last year, an explosion at U.S. Steel's Clairton Coke Works outside Pittsburgh killed two U.S. Steel workers and injured 11 ...

Six months ago, an explosion at the U.S. Steel Clairton Coke Works killed two people. It also heightened the stakes in the ...

United Launch Alliance suffered yet another fiery burn-through on one of its solid rocket boosters during a national security mission Thursday.

Did the U.S. just bomb Iran? Or was this another mysterious explosion inside the Islamic Republic? Early today, a loud blast was reported on Qeshm Island—one of Iran’s most sensitive and strategic ...