A collision with a Mars-size planetary object called Theia 4.44 billion years ago, left, might not only have formed the moon but also given rise to plate tectonics.

A massive collision between the Indian tectonic plate and the Eurasian tectonic plate is causing the Himalayas to grow, but new research suggests it might also be ripping Tibet apart.

GPS measurements of plate motion aren’t enough to figure out the forces involved, just as the speed of two cars isn’t really enough to predict the outcome of a collision.

The plate tectonics that determine the shape of our continents may have originated from a huge impact billions of years ago. This huge collision with the Earth, thought to have occurred around 4.5 ...

A hypothetical, Mars-sized planet might have collided with Earth about 4.5 billion years ago and birthed the moon. The impact could have kick-started subduction on Earth, researchers suggest.

Some 4.5 billion years ago, a Mars-sized object smashed into the nascent Earth, spinning off our moon. Now a team of scientists proposes this giant impact did even more: The collision left behind ...

Marked slowing of the convergence rate of India with Eurasia determined from plate circuit motions 2,3 agrees broadly with the estimate of continental collision age from the stratigraphic record ...

The plate boundary between Africa and the Iberian Peninsula could cause large tsunamis, according to a new study published recently in Nature Communications. Due to a lack of data, the studies ...