An ancient inscription found in Sinai shows how Egypt claimed power beyond the Nile more than 5,000 years ago.

A rare fossil discovery in Ethiopia has pushed the known range of Paranthropus hundreds of miles farther north than ever before. The 2.6-million-year-old jaw suggests this ancient relative of humans ...

Some readers may recall one of my earlier columns about the Kardashev scale. Essentially, this column discussed applying a theoretical framework — in which ...