A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

Might sinuous ridges carved out across the ancient highlands of Mars hold the secret to a vanished age of rivers and rain on the Red Planet? Over 15,000 kilometers of such fluvial sinuous ridges, or ...

Rivers are Earth's arteries. Water, sediment and nutrients self-organize into diverse, dynamic channels as they journey from ...

Traditionally, Mars was thought to have been cold and dry, with only brief periods of melting ice creating short-lived rivers.

Four years ago, summer floods in Limburg—in the south of the Netherlands—drastically altered the riverbed of the Meuse, ...