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Latest Planetary geology Stories

The Red Planet Experiences 'Marsquakes'
2012-02-22 11:49:17

University of London researchers report they have found evidence that Mars experiences "marsquakes" in the same way Earth does with an earthquake. The researchers said the existence of marsquakes is an indication that conditions on Mars could include liquid water. The team from the University of London used High Resolution Imaging Science Experiment (HiRISE) imagery to examine a fault system known as Cerberus Fossae. They analyzed the way boulders had fallen and rolled during...

Image 1 - 'Honeycombs' And Hexacopters Help Tell Story Of Mars
2012-02-18 06:22:14

In a rough-and-tumble wonderland of plunging canyons and towering buttes, some of the still-raw bluffs are lined with soaring, six-sided stone columns so orderly and trim, they could almost pass as relics of a colossal temple. The secret of how these columns, packed in edge to edge, formed en masse from a sea of molten rock is encrypted in details as tiny as the cracks running across their faces. To add to this mystery's allure, decoding it might do more than reveal the life story of some...

A New Kind Of Metal In The Deep Earth
2011-12-20 03:45:43

The crushing pressures and intense temperatures in Earth's deep interior squeeze atoms and electrons so closely together that they interact very differently. With depth materials change. New experiments and supercomputer computations discovered that iron oxide undergoes a new kind of transition under deep Earth conditions. Iron oxide, FeO, is a component of the second most abundant mineral at Earth's lower mantle, ferropericlase. The finding, published in an upcoming issue of Physical Review...

Image 1 - New Mystery On Mars' Forgotten Plains
2011-10-12 09:23:41

One of the supposedly best understood and least interesting landscapes on Mars is hiding something that could rewrite the planet´s history. Or not. In fact, about all that is certain is that decades of assumptions regarding the wide, flat Hesperia Planum are not holding up very well under renewed scrutiny with higher-resolution, more recent spacecraft data. "Most scientists don't want to work on the flat things," noted geologist Tracy Gregg of The University at Buffalo, State...

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2011-02-04 10:00:00

ESA's Mars Express has returned new views of pedestal craters in the Red Planet's eastern Arabia Terra. Craters are perhaps the quintessential planetary geological feature. So much so that early planetary geologists expended a lot of effort to understand them. You could say they put craters on a pedestal. This latest image of Mars shows how the Red Planet does it in reality. Craters are the result of impacts by asteroids, comets and meteorites. In a pedestal crater, the surrounding terrain is...

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2010-12-17 08:34:52

By Louis Bergeron, Stanford University A new method of capturing detailed, three-dimensional images of minute samples of material under extreme pressures is shedding light on the evolution of the Earth's interior. Early results suggest that the early Earth did not have to be entirely molten to separate into the rocky crust and iron-rich core it has today. Researchers at Stanford University and SLAC National Accelerator Laboratory are leading the group pioneering the technique, which could...

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2010-09-18 08:14:00

The Earth's mantle and its core mix at a distance of 2900 km under our feet in a mysterious zone. A team of geophysicists has just verified that the partial fusion of the mantle is possible in this area when the temperature reaches 4200 Kelvin. This reinforces the hypothesis of the presence of a deep magma ocean. The originality of this work, carried out by the scientists of the Institut de min©ralogie et de physique des milieux condens©s (UPMC/Universit© Paris Diderot/Institut...

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2010-08-30 20:15:15

A new geologic map of the moon's Schrödinger basin paints an instant, camouflage-colored portrait of what a mash-up the moon's surface is after eons of violent events. The geologic record at Schrödinger is still relatively fresh because the basin is only about 3.8 billion years old; this makes it the moon's second-youngest large basin (it's roughly 320 kilometers, or 200 miles, in diameter).Schrödinger is located near the moon's south pole, a region where pockets of permanent...

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2010-08-20 07:45:57

Earth's next-door neighbor, the Moon, has been found by astronomers to be shrinking, but only by a miniscule amount.Astronomers reported Thursday in the US journal Science that they had discovered previous undetected cracks in the moon's crust that formed as the interior cooled and shrunk over the last billion or so years. The finding indicates that the lunar satellite has definitely gotten smaller, though not enough that it would be noticed by just gazing at it.Scientists have identified 14...

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2010-07-30 08:55:00

Scientists believe that they have found rocks containing the fossilized remains of early life on Mars, according to a new article published in the latest edition of Earth and Planetary Science Letters. According to the report, a team of scientists--led by Dr. Adrian J. Brown of the Search for Extraterrestrial Intelligence (SETI) Institute in California--discovered the rocks in the Nili Fossae region of the "Red Planet." Their research on the hydrothermal formation of clay-carbonate rocks in...


Latest Planetary geology Reference Libraries

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2010-10-29 20:31:07

Harrison Schmitt was a NASA astronaut, and is also an American geologist. He was born Harrison Hagan "Jack" Schmitt on July 3, 1935 in Santa Rita, New Mexico. After high school, he went to the California Institute of Technology and received a B.S. degree in science in 1957. He then went to Norway to study geology at the University of Oslo. In 1964, Schmitt earned a Ph.D. in geology from Harvard University. After receiving his doctorate, he worked at the U.S. Geological Survey's...

4_eccd202c9b173d8cc2bddcaa6629203b2
2004-10-19 04:45:40

The Planet Venus is the second planet from the sun. It is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between the sun and the orbit of the earth, Venus passes through phases like those of the moon, varying from a large bright crescent when the planet is near inferior conjunction (nearest the earth) to a smaller silvery disk when it is at superior conjunction (farthest from the earth). Since...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'