The United States has no intention of lowering its troop numbers in eastern Europe, Polish president Andrzej Duda said after a meeting in Warsaw with Donald Trump's Ukraine envoy Keith Kellogg.

Today, the upheavals of plate tectonics continually reshape Earth. When this began is much disputed - and we can’t fully understand how life began to thrive on our planet until we figure it out ...

Fossils and genetics are starting to point to life emerging surprisingly soon after Earth formed, when the planet was ...

Scientists in Egypt discovered a not-before-known apex predator that lived 30 million years ago, potentially helping to solve an extinction mystery.

Where are we at this negotiating table? This war is taking place inside Ukraine. Putin is killing Ukrainians, not Americans,’ ...

Charles Ver Straeten, curator of sedimentary rocks at the New York State Museum, made an unexpected discovery while surveying ...