Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

"It's like a city frozen in time," said archaeologist Pedro Guillermo Ramón Celis of Canada's McGill University.

Archaeologists discovered clusters of red ocher drawings scattered on rocks and cliffs across Canaima National Park—and have some theories on who made the mysterious art.

President Trump has appointed Chris Rocheleau as the acting FAA administrator following a tragic aircraft collision near Washington, D.C. Rocheleau, with over two decades of experience at the FAA ...