Learn more about how income inequality may increase the potential for political instability and may have led to the collapse of the Roman Empire and the Han Dynasty.
Swapping soda for black coffee could benefit your mental health. Learn more about a new study that contributes to a growing body of research that links sweetened drinks to poorer mental health outcomes.
Learn why finding no obvious biosignatures on 40 to 80 exoplanets doesn’t mean that life doesn’t exist outside Earth. It just provides a way to narrow the search.