It's an argument that's persisted for nearly four centuries: Where does the Amazon River begin?
An Earth-watching satellite has spotted the latest winter storm threatening to paralyze the southeastern United States.
As the world’s oceans get more acidic, Chesapeake Bay oysters could be at risk.
A cold-water coral that thrives in deep, dark water has been found growing off the shore of Greenland as a reef for the first time, scientists report.
"Science Guy" Bill Nye took the stage and promoted science in the snappy way that made him a pop culture staple on TV in the 1990s.
Australia approved a plan to dump large amounts of mud and sediment into the oceans surrounding the Great Barrier Reef in order to make room for developers to expand a coal...
It's as eerie as it is breathtaking and surprising: a waterfall in Antarctica that runs blood-red.
They're not the work of World War II bombs or aliens or fairies.
Volunteers track shifts in temperature with their homemade rinks.