Chemist Kathryn Harkup talked about Agatha Christie's background and how she applied her experience and knowledge about poisons in her stories.

Some pundits warn that, given extremely high stock valuations, one should sell everything. Yet, despite having the same ...

Narrow country lanes wind past farms that look frozen in time. Colonial stone houses still shelter families after 300 years of weather. Their thick walls and tiny windows speak of harsh frontier ...

The Powerball jackpot is now the second-largest in U.S. lottery history. Here's a look at some numbers behind the game.