Clays can expand under pressure

It was always believed that water is "squeezed" out of the clay structure under pressure but physicists at Umea University in Sweden together with German colleagues show that this appear to be not always true if excess of ...

Curiosity Mars rover sees trend in water presence

(Phys.org) —NASA's Mars rover Curiosity has seen evidence of water-bearing minerals in rocks near where it had already found clay minerals inside a drilled rock.

Fossilized conduits suggest water flowed beneath Martian Surface

(Phys.org)—Networks of narrow ridges found in impact craters on Mars appear to be the fossilized remnants of underground cracks through which water once flowed, according to a new analysis by researchers from Brown University.

Surveying Earth's interior with atomic clocks

Ultraprecise portable atomic clocks are on the verge of a breakthrough. An international team lead by scientists from the University of Zurich shows that it may be possible to use the latest generation of atomic clocks to ...

Martian clay minerals might have a much hotter origin

(Phys.org)—Ancient Mars, like Earth today, was a diverse planet shaped by many different geologic processes. So when scientists, using rovers or orbiting spacecraft, detect a particular mineral there, they must often consider ...

Early Mars may not have been hospitable after all: study

Instead of a warm, wet and possibly life-bearing planet as some scientists contend, early Mars may have been a hostile and volatile place with frequent volcanic outbursts, a study said Sunday.

Guyana suspends gold, diamond mining permits

The South American country of Guyana said it had suspended the granting of new permits to mine for gold and diamonds in rivers because of concerns over widespread pollution.

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