Massive crustal plates shift, creating mountains, earthquakes, and volcanic activity. This process, known as plate tectonics, ...

Scientists have calculated the Earth to be 4.54 billion years old, with an uncertainty of 50 million years on either side.

NISAR will accurately detect and assess tectonic activity, but it won't be able to predict ... We are especially looking at ...

On Mars however, with its lack of plate tectonics and a basaltic crust dominated by dark minerals like olivine and pyroxene, ...

Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet ...

Reef historian Iain McCalman, in Sydney, and reef scientist Stephen Palumbi, in California, are monitoring reef degradation from opposite sides of the planet. They compared notes. Iain McCalman: A ...