Wave ripples—the undulating lines in sandy shores that form when the wind pushes shallow water back and forth—are a common sight on Earth’s lakes and beaches. Now, NASA’s Curiosity rover has ...

When I was playing “splash rocks”, I noticed that when I threw the rock into the river it made a circle shape, which got bigger. How does it make the ripple? Why do the circles spread out further and ...

A group of physicists from Canada have been growing their own icicles in a lab in the hope of solving a mystery that has, up until now, continued to puzzle scientists. The presence of characteristic ...