NASA’s Curiosity rover recently spotted some of the most compelling evidence yet of ancient water on Mars, in the form of rippled rocks shaped by waves. The ripples formed billions of years ago ...

The Curiosity mission team has discovered the clearest evidence of ancient water ripples yet. Billions of years ago on Mars, waves on the surface of shallow water shook sediment at the bottom. As ...

Ripples in the water returned exactly to their start point – the shape of the Eiffel Tower. Déjà vu. To show that the backward-travelling waves converge exactly on their starting point, ...