Handful of lava pebbles thrown into the air. A new study shows how strong shaking at a fault has rocks—briefly—defying gravity. When Julian Lozos, a seismologist at California State University, ...

Prehistoric engravings of giant snakes along South America’s Orinoco river are among the largest examples of rock art we know of anywhere in the world, with some stretching for more than 40 metres.

Rocks in Australia preserve evidence that plates in Earth’s crust were moving 3.5 billion years ago, a finding that pushes back the beginnings of plate tectonics by hundreds of millions of years.