Mars may act as a giant planetary pump

( —The surface of Mars is full of activity, with dust storms, dust devils, and drifting dunes in constant motion. Scientists suspect that similarly rich activity may exist underneath the surface, even though it ...

NASA Mars spacecraft reveals a more dynamic red planet

( —NASA's Mars Reconnaissance Orbiter has revealed to scientists slender dark markings—possibly due to salty water - that advance seasonally down slopes surprisingly close to the Martian equator.

Dry ice lake suggests Mars once had a 'Dust Bowl' (Update)

( -- NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies. This process can affect the stability of liquid water, ...

Harbingers of increased Atlantic hurricane activity identified

Reconstructions of past hurricane activity in the Atlantic Ocean indicate that the most active hurricane period in the past was during the "Medieval Climate Anomaly" about a thousand years ago when climate conditions created ...

Coastal wetlands are nature's flood defences

Coastal wetlands—such as salt marshes—provide even more flood protection than previously thought, reducing the risk to lives and homes in estuaries, a new study has revealed.

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