An unexpected radioactive discovery beneath the Pacific Ocean seabed may provide researchers with a new global geologic time ...

Beryllium-10, a rare radioactive isotope produced by cosmic rays in the atmosphere, provides valuable insights into the Earth's geological history. A research team has discovered an unexpected ...

A deep sea creature known for living hundreds of meters below the water's surface in the darkness of the deep ocean was photographed in broad daylight last week — in what researchers are saying may be ...

Rittenhouse Square is one of those parts of the city that takes us back in time. The late 17th-century park full of statues ...