Answer to opal mystery shows Red Centre's links to Red Planet
(Phys.org) —The dramatic geological events that created opal, Australia's national gemstone, have been described for the first time by a University of Sydney researcher.
Opportunity discovers clays favorable to martian biology and sets sail for motherlode of new clues
Now nearly a decade into her planned 3 month only expedition to Mars, NASA's longest living rover Opportunity, struck gold and has just discovered the strongest evidence to date for an environment favorable ...
Slow earthquakes: It's all in the rock mechanics
(Phys.org) —Earthquakes that last minutes rather than seconds are a relatively recent discovery, according to an international team of seismologists. Researchers have been aware of these slow earthquakes, ...
Mars rover Opportunity examines clay clues in rock
(Phys.org) —NASA's senior Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
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 ...
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.
Curiosity rover finds conditions once suited for ancient life on Mars
(Phys.org) —An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
Study: Martian crater may once have held groundwater-fed lake
(Phys.org)—A NASA spacecraft is providing new evidence of a wet underground environment on Mars that adds to an increasingly complex picture of the Red Planet's early evolution.
Can we accurately model fluid flow in shale?
(Phys.org)—Given that over 20 trillion cubic meters of natural gas, a third of the United States' total reserves, are thought to be trapped in shale, and given the rush to exploit shale oil and gas resources ...
Clays on Mars: More plentiful than expected
(Phys.org)—A new study co-authored by the Georgia Institute of Technology indicates that clay minerals, rocks that usually form when water is present for long periods of time, cover a larger portion of ...
Opportunity rover finishes walkabout on Mars crater rim
(Phys.org)—The latest work assignment for NASA's long-lived Mars rover Opportunity is a further examination of an area where the robot just completed a walkabout.
DNA sleuth hunts wine roots in Anatolia
There are easier places to make wine than the spectacular, desolate landscapes of southeast Turkey, but DNA analysis suggests it is here that Stone Age farmers first domesticated the wine grape.
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 ...
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.