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pokerfan

(27,677 posts)
Thu Sep 25, 2014, 04:52 PM Sep 2014

Mars Curiosity Rover Finds Weird Sphere





At first glance it looks like an old cannonball or possibly a dirty golf ball. But knowing that Mars is somewhat lacking in the 16th-century battleship and golf cart departments, there was likely another answer. Of course it's nothing man (or alien)-made, despite what your brain might be telling you. It's another fascinating rock. Yep, it's a spherical Mars rock.

According to MSL scientists based at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., the ball isn't as big as it looks — it's approximately one centimeter wide. Their explanation is that it is most likely something known as a "concretion." Other examples of concretions have been found on the Martian surface before — take, for example, the tiny haematite concretions, or "blueberries", observed by Mars rover Opportunity in 2004 — and they were created during sedimentary rock formation when Mars was abundant in liquid water many millions of years ago.

More: http://io9.com/curiosity-finds-a-weird-ball-on-mars-1639003756
12 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Mars Curiosity Rover Finds Weird Sphere (Original Post) pokerfan Sep 2014 OP
Bocci! immoderate Sep 2014 #1
Beryllium sphere from Galaxy Quest pokerfan Sep 2014 #2
Hey! That's my old Nerf ball! JHB Sep 2014 #3
I've found several concretions in Ordovician outcroppings theHandpuppet Sep 2014 #4
Not just a Ball..In the same area..The''traffic light' Ichingcarpenter Sep 2014 #5
That's an exhaust manifold from a 1968 Ford. I couldn't remember where I put that thing! nt King_Klonopin Sep 2014 #9
Looks like the end of an proReality Sep 2014 #11
It's aliens I tell you. hobbit709 Sep 2014 #6
If certain types of stones are tumbled in water or wind currents long enough ladjf Sep 2014 #7
How cool dipsydoodle Sep 2014 #8
No big deal... nikto Sep 2014 #10
Fore! Rozlee Sep 2014 #12

JHB

(37,160 posts)
3. Hey! That's my old Nerf ball!
Thu Sep 25, 2014, 09:34 PM
Sep 2014

"Put that ratty old thing where I'll never find it?", hmmm Mom? Didn't count on robots, did ja?

theHandpuppet

(19,964 posts)
4. I've found several concretions in Ordovician outcroppings
Thu Sep 25, 2014, 11:42 PM
Sep 2014

Broke them open to find they had built up around a fossilized shell. The largest one I ever found was the size of a softball. I'd been under the impression (mistaken, apparently) that concretions from sedimentary deposits were always formed around an object like a seashell. How does this process work otherwise?

Ichingcarpenter

(36,988 posts)
5. Not just a Ball..In the same area..The''traffic light'
Fri Sep 26, 2014, 04:03 AM
Sep 2014








http://rt.com/news/190624-mars-traffic-lights-rock-curiosity/


Looks like a gear or a weird cheetos you sometimes find in the bag more than a traffic light...

ladjf

(17,320 posts)
7. If certain types of stones are tumbled in water or wind currents long enough
Fri Sep 26, 2014, 09:50 AM
Sep 2014

under certain conditions they eventually become balanced spheres. nt

 

nikto

(3,284 posts)
10. No big deal...
Sat Sep 27, 2014, 04:21 AM
Sep 2014

It's clearly a petrified tangerine.
Totally inedible.

Nothing to see here, move on.

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