Meanwhile, new Iranian attacks are reported in Saudi Arabia and Kuwait, after earlier strikes on the US consulate in Dubai and a US base in Qatar.

The squeaking of sneakers on a gym floor is usually attributed to friction, specifically a stick-slip variety that involves cycles of sticking and sliding between two surfaces. But that model is best ...

To science we owe dramatic changes in our smug self-image. Astronomy taught us that our earth isn't the center of the universe but merely one of billions of heavenly bodies. From biology we learned ...