Cities may be the defining element of human civilization. The path from hunter-gatherers in the Paleolithic era 25,000 years ago to the high-tech, high-wonder jumble we inhabit today runs straight ...

Why do the Dutch 17 th century still life paintings place such a strong emphasis on chaos, entropy and disorder? How did still life painters portray the conflict between order, harmony and beauty on ...

Astrophysicists and cosmologists have competing theories about how the universe will end. Some think there is enough dark matter in the universe to generate the gravitational pull necessary to have ...