Petrified wood is one of the most sought-after materials in the world for both its aesthetic value and its scientific value.

As the investigation into a deadly plane crash in Washington, D.C., gets underway, U.S. Sen. Tammy Duckworth (D-Illinois), a former U.S. Army Black Hawk pilot, will be looking into what happened as ...

President Donald Trump signed several sweeping executive orders on Wednesday to overhaul the American education system, ...