Billions of years ago, water flowed across Mars. Most scientists agree the red planet had rivers. But did those rivers flow ...

Whether an asteroid is spinning neatly on its axis or tumbling chaotically, and how fast it is doing so, has been shown to be ...

The "walking" philosophers, known as the Peripatetics, represent one of the most influential traditions in the history of ancient Greece.

In the 18th century, scientists agreed on half the answer to the lights people had seen over wetlands for thousands of years, ...

Almost 200 engravings created around 12,000 years ago have been discovered in Saudi Arabia, including depictions of camels ...