Skip to comments.
Are the gods playing marbles on Mars?
New Scientist ^
 | 6/11/13
 | Victoria Jaggard
Posted on 06/11/2013 7:21:19 PM PDT by LibWhacker
  
 
  
  
 
  
  
 
 
 

(Image: NASA/JPL-Caltech/University of Arizona)
 
A rolling stone gathers no moss  but on Mars it can nevertheless cloak itself in mystery. This NASA image shows the track of a boulder that rolled across the Nili Fossae region of Mars. For now it is anyone's guess what set the rock in motion.
 
This false-colour picture (click on it for higher resolution) was posted on 7 June to the Beautiful Mars Tumblr feed, a collection of high-resolution shots from the HiRISE camera aboard NASA's Mars Reconnaissance Orbiter. It shows dark, jagged tracks left in the soil by a lumpy boulder, probably a few metres wide, as it tumbled down a slope. A handful of smaller rocks (seen on the right) also made dotted lines as they rolled.
(Excerpt) Read more at newscientist.com ...
TOPICS: Astronomy; Science
KEYWORDS: astronomy; boulders; california; catastrophism; deathvalley; marbles; mars; moving; mystery; mysterysolved; nasa; racetrackplaya; science
Navigation: use the links below to view more comments.
 first 1-20, 21-39 next  last
    
To: SunkenCiv
To: LibWhacker
    CO2 dry ice sliding down a hill ?
 
To: American Constitutionalist
To: LibWhacker
5
posted on 
06/11/2013 7:30:02 PM PDT
by 
JoeProBono
(Mille vocibus imago valet;-{)
 
To: American Constitutionalist
    
 good try but the object didn't evaporate and is still at the bottom of the trail... if they take another picture and it's gone then it could very well be, if it's still there, prolly not
 
6
posted on 
06/11/2013 7:32:26 PM PDT
by 
Chode
(Stand UP and Be Counted, or line up and be numbered - *DTOM* -ww- NO Pity for the LAZY)
 
To: LibWhacker
    Since it was perched on a hill, I'd say gravity had something to do with it.
Now... if it rolled across a flat surface, then I would question how that happened.
Happens here on Earth.
 (Racetrack Playa in Death Valley) 
 
7
posted on 
06/11/2013 7:36:09 PM PDT
by 
UCANSEE2
(The monsters are due on Maple Street)
 
To: UCANSEE2
    Have they figured out how those move yet?
 
8
posted on 
06/11/2013 7:38:10 PM PDT
by 
Jack Hydrazine
(IÂ’m not a Republican, I'm a Conservative!  Pubbies haven't been conservative since before T.R.)
 
To: Chode
    This puzzle isn’t really hard. It was on an incline, and Mars has seismic activity, just as every planetary body does, including our moon.
 
9
posted on 
06/11/2013 7:38:19 PM PDT
by 
UCANSEE2
(The monsters are due on Maple Street)
 
To: UCANSEE2
    
 those ALWAYS amazed me...
 
10
posted on 
06/11/2013 7:42:50 PM PDT
by 
Chode
(Stand UP and Be Counted, or line up and be numbered - *DTOM* -ww- NO Pity for the LAZY)
 
To: LibWhacker
    
  It was the mars rat ....
 
11
posted on 
06/11/2013 7:43:06 PM PDT
by 
wonkowasright
(Wonko from outside the asylum)
 
To: Jack Hydrazine
    The theory is that moisture in the air condenses at night, on the surface, and capillary action causes it to be sucked between the rock and the dry ground underneath, giving the rock a ‘lift’ off the ground suspended on a small pad of water. Then... the wind moves the almost resistance free rock across the ‘racetrack’.
 
12
posted on 
06/11/2013 7:43:27 PM PDT
by 
UCANSEE2
(The monsters are due on Maple Street)
 
To: Chode
    Could it be simply a huge rock fallen down a hill ?
 
To: Chode
    Will Smith dragging a alien in his parachute ?
To: LibWhacker
15
posted on 
06/11/2013 7:46:38 PM PDT
by 
UCANSEE2
(The monsters are due on Maple Street)
 
To: American Constitutionalist
    
 bingo... 8^)
 
16
posted on 
06/11/2013 7:49:11 PM PDT
by 
Chode
(Stand UP and Be Counted, or line up and be numbered - *DTOM* -ww- NO Pity for the LAZY)
 
To: Jack Hydrazine
    Have they figured out how those move yet? Yes.
 
17
posted on 
06/11/2013 7:49:25 PM PDT
by 
Tenacious 1
("The British are Coming (to confiscate weapons)" - Paul Revere  (We know how that ended))
 
To: wonkowasright
    Martian Golf Course.
 
18
posted on 
06/11/2013 7:52:25 PM PDT
by 
UCANSEE2
(The monsters are due on Maple Street)
 
To: JoeProBono
    I love you for your pictures. You are so special, don’t stop those pictures.
 
19
posted on 
06/11/2013 8:06:51 PM PDT
by 
Marcella
(Prepping can save your life today.  I am a Christian, not a Muslim.)
 
To: LibWhacker
20
posted on 
06/11/2013 8:31:53 PM PDT
by 
schm0e
("we are in the midst of a coup.")
 
Navigation: use the links below to view more comments.
 first 1-20, 21-39 next  last
    Disclaimer:
    Opinions posted on Free Republic are those of the individual
    posters and do not necessarily represent the opinion of Free Republic or its
    management. All materials posted herein are protected by copyright law and the
    exemption for fair use of copyrighted works.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson