California should pursue less expensive alternatives that would safeguard our main water supply system without causing great ...

On Earth, in contrast, nearly every river of similar size has a delta ... may also play an equally large role in preventing delta formation. And missing deltas aren't the only mystery raised ...

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red Planet.

The Delta tunnel project is a plan that's drawing bipartisan backlash. It would take water from the Sacramento-San Joaquin River Delta and move it to Southern California. Gov. Gavin Newsom is ...

What processes could be responsible for Saturn’s largest moon, Titan, lacking river deltas as seen on Earth ... to ascertain a better understanding of the formation and evolution of Titan’s coastlines ...