Great Abaco Island has a blue hole, Sawmill Sink, filled with fossils from the Ice Age showing the island's ancient history.

Damning new images have revealed Beijing is building a ... to a wider surveillance network spanning much of the South China Sea,” the report states. The revelation comes even as the United ...

The photographer examines the effects of climate change and extensive drilling in the Caspian Sea region, focusing on its ...

Through the intricate study of lava tubes -- caves formed following volcanic eruptions when lava cools down -- an international team of researchers has uncovered clues about Earth's ancient ...

Researchers have found cave art in Sulawesi, Indonesia which has raised questions about their assumptions about cave ...

Spend an outdoor adventure exploring incredible cliffs, hiking scenic trails, and spotting shipwreck sites, all on Michigan's ...

The famed Magdala Stone has intricate carvings that ‘showcase the earliest known synagogue images of Temple Menorah.’ ...