Nearly 75 per cent of the us is at risk from earthquakes

Earth’s first crust looked surprisingly like today’s © ...

How ancient architects erected some of the world’s most famous places of worship

Ancient India gave the world its number system, anticipated Galileo’s heliocentric theory by a millennium and spread its culture from Egypt to Siberia–only to be almost entirely forgotten. It’s past time to restore it to its rightful place in history

Mars once had vast oceans on its surface. Then its magnetic field weakened, its atmosphere thinned, and its water vanished. But the numbers don’t add up. For the Red Planet to have transformed from a

Neutron stars can suffer quakes far more powerful than anything on Earth

Mass extinctions and evolutionary leaps, from bacteria to Homo sapiens