Strange Mystery Spheres on Mars Baffle Scientists

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PostMon Sep 17, 2012 4:05 pm » by Kinninigan


:look:



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Strange Mystery Spheres on Mars Baffle Scientists

A strange picture of odd, spherical rock formations on Mars from NASA's Opportunity rover has scientists scratching their heads over what exactly they're looking at.

The new Mars photo by Opportunity shows a close-up of a rock outcrop called Kirkwood covered in blister-like bumps that mission scientists can't yet explain. At first blush, the formations appear similar to so-called Martian "blueberries" — iron-rich spherical formations first seen by Opportunity in 2004 — but they actually differ in several key ways, scientist said.

"This is one of the most extraordinary pictures from the whole mission," said rover mission principal investigator Steve Squyres of Cornell University in Ithaca, N.Y., in a statement. "Kirkwood is chock full of a dense accumulation of these small spherical objects. Of course, we immediately thought of the blueberries, but this is something different. We never have seen such a dense accumulation of spherules in a rock outcrop on Mars."

The new photo by Opportunity is actually a mosaic of four images taken by a microscope-like imager on its robotic arm, and then stitched together like puzzle pieces by scientists on Earth.

Opportunity on Mars

The Mars rover Opportunity is currently exploring a location known as Cape York along the western rim of a giant Martian crater called Endeavour. Opportunity is one of two golf cart-size NASA rovers that landed on Mars in January 2004 (Spirit was the other) to explore different landing sites.

The solar-powered rovers were initially expected to last just 90 days on Mars, but each survived for years on the Red Planet. Spirit stopped communicating with Earth in 2010, but Opportunity is still operational.

Despite its advanced age, Opportunity is still pumping out new discoveries after more than eight years on Mars. The rover first spotted Martian blueberries soon after its landing in 2004. The blueberries are actually concretions created by minerals in water that settled into sedimentary rock.

Opportunity has seen Martian blueberries at many of its science sites during its Red Planet exploits, but the bumpy, spherical formations on the Kirkwood rock represent something new, researchers said. In Opportunity's new photo, many of the strange features are broken, revealing odd concentric circles inside.

"They seem to be crunchy on the outside, and softer in the middle," Squyres said. "They are different in concentration. They are different in structure. They are different in composition. They are different in distribution. So, we have a wonderful geological puzzle in front of us." [7 Biggest Mars Mysteries]

Squyres said he and his science team have several theories, but none that truly stand out as the best explanation for what could have created the weird bumps on Mars.

"It's going to take a while to work this out, so the thing to do now is keep an open mind and let the rocks do the talking," he said.

A Martian spring

The Kirkwood outcrop is just one science pit stop at Cape York for Opportunity. Mission scientists have already picked out another interesting rock outcrop nearby, a pale patch that may contain tantalizing clay minerals, for possibly study after Opportunity completes its current analysis.

Meanwhile, the spring equinox is approaching on Mars, ensuring increasing levels of sunshine for Opportunity's solar arrays.

"The rover is in very good health considering its 8-1/2 years of hard work on the surface of Mars," said rover project manager John Callas of NASA's Jet Propulsion Laboratory in Pasadena, Calif., in a statement. "Energy production levels are comparable to what they were a full Martian year ago, and we are looking forward to productive spring and summer seasons of exploration."

While Opportunity explores the plains of its Meridiani Planum location, NASA's Mars rover Curiosity is poised to resume driving toward its first long-distance destination inside Gale Crater. The rover, which has completed its final health checks, is headed for a site called Glenelg near the base of the 3-mile (5-kilometer) Mount Sharp, a mountain that rises from the center of its Gale Crater landing site.

Curiosity landed on Mars on Aug. 5 and is expected to spend two years studying Gale Crater to determine if the region could have ever supported microbial life.







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http://news.yahoo.com/strange-mystery-s ... 54357.html















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PostMon Sep 17, 2012 4:30 pm » by E6722maj


interesting :think: :headscratch:

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PostMon Sep 17, 2012 4:51 pm » by Boatman


Is it just me or do they look like Worm casts?.
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PostMon Sep 17, 2012 4:59 pm » by The57ironman


Kinninigan wrote:Image


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.......what's that pic of the grand canyon doin' there..?.... :peep:


.













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PostMon Sep 17, 2012 5:03 pm » by Kinninigan


The57ironman wrote:
Kinninigan wrote:Image


.


.......what's that pic of the grand canyon doin' there..?.... :peep:


.













:peep:






Haha thats pic that NASA/JPL released of the entire crater. It was linked with the article.

And yes, it looks like the grand canyon, with a "white sky" again









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PostMon Sep 17, 2012 5:11 pm » by Kinninigan


:look:


the have a ton of photos at the NASA site now, I thought this one was cool:

http://photojournal.jpl.nasa.gov/catalog/PIA15684




Image
















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PostMon Sep 17, 2012 5:12 pm » by Kinninigan


Boatman wrote:Is it just me or do they look like Worm casts?.




so you say they look "organic" in nature, thats what I thought too












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PostMon Sep 17, 2012 5:38 pm » by Toxic32


Simple they should have asked me first. Bubbles trapped in muddy pool of water that dried out and hardened over time. You can see the structure of the hollow rounded shapes by looking at the broken ones. They leave a round ring showing that they were hollow. Just some examples. http://ars.els-cdn.com/content/image/1-s2.0-S0037073808002509-gr18.jpg

http://www.sciencedirect.com/science/article/pii/S0037073808002509
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PostMon Sep 17, 2012 5:40 pm » by Flecktarn


some Martian kid lost his marbles perhaps
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PostMon Sep 17, 2012 5:41 pm » by Kinninigan


Toxic32 wrote:Simple they should have asked me first. Bubbles trapped in muddy pool of water that dried out and hardened over time. You can see the structure of the hollow rounded shapes by looking at the broken ones. They leave a round ring showing that they were hollow. Just some examples. http://ars.els-cdn.com/content/image/1-s2.0-S0037073808002509-gr18.jpg

http://www.sciencedirect.com/science/article/pii/S0037073808002509





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