Astronomy Picture of the Day -
What created this unusual hole in Mars?
http://apod.nasa.gov...d/ap120718.html
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34 replies to this topic
#1
Still Waters
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Posted 19 July 2012 - 08:51 PM
#2
Coffey
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Posted 19 July 2012 - 09:03 PM
I'm not a scientist, but that looks like an inpact crater.
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#3
Jeffertonturner
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Posted 19 July 2012 - 09:53 PM
Looks like a sink hole. Must be underground caves.
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#4
pallidin
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Posted 19 July 2012 - 10:06 PM
That's awesome! Love the clarity of the picture.
If that's an underground cavern exposed by impact, I wonder what caused the cavern. Flowing liquid/magma in times past?
Anyway, great find.
If that's an underground cavern exposed by impact, I wonder what caused the cavern. Flowing liquid/magma in times past?
Anyway, great find.
#5
lightly
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Posted 19 July 2012 - 10:15 PM
Amazing! it does look like a sinkhole, maybe, but why isn't there a pile of .. sand? directly underneath the opening?
Where did the sand go that must have slid down? It looks Empty inside!! It does look sort of like an impact crater.. the Hollowness is the astounding part!
Where did the sand go that must have slid down? It looks Empty inside!! It does look sort of like an impact crater.. the Hollowness is the astounding part!
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#6
The Mule
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Posted 20 July 2012 - 12:06 AM
Is the white surrounding suppossed to be Ice? Sand? Salt? give us a little help here NAY-sa!!
...never let a little thing like a fact get in the way of a good theory!
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#7
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Posted 20 July 2012 - 12:07 AM
Nice pic, but i dont know lmao
thanks,
thanks,
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#8
Hilander
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Posted 20 July 2012 - 01:32 AM
If Mars does have underground caves that may be a sign it had water at one time and life.
#9
DingoLingo
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Posted 20 July 2012 - 03:26 AM
it does look like a sink hole..
Hilander.. there is a lot of evidence that mars at one time did hold water
as for life.. possible.. but not confirmed..
Hilander.. there is a lot of evidence that mars at one time did hold water
as for life.. possible.. but not confirmed..
#10
Coffey
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Posted 21 July 2012 - 11:56 AM
Sinkhole:
Impact Crater:
My money is impact crater, just happens to be a hole or cave underneath. Which oculd have even been created by the thing that made the impact. (Meteor, space debri etc)
Impact Crater:
My money is impact crater, just happens to be a hole or cave underneath. Which oculd have even been created by the thing that made the impact. (Meteor, space debri etc)
Edited by Coffey, 21 July 2012 - 11:58 AM.
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#11
ZaraKitty
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Posted 21 July 2012 - 12:17 PM
Mars seems to have a pimple..
#12
dharma warrior
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Posted 21 July 2012 - 01:40 PM
It's a gigantic martian ant lion.
#13
Zamor
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Posted 21 July 2012 - 05:14 PM
lightly, on 19 July 2012 - 10:15 PM, said:
Amazing! it does look like a sinkhole, maybe, but why isn't there a pile of .. sand? directly underneath the opening?
Where did the sand go that must have slid down? It looks Empty inside!! It does look sort of like an impact crater.. the Hollowness is the astounding part!
Where did the sand go that must have slid down? It looks Empty inside!! It does look sort of like an impact crater.. the Hollowness is the astounding part!
Agree, the cave floor underneath seems flat and no sand or debris.
Might be that there has been an underground river sweeping it away after the crater was made?
Zam
#14
TheMacGuffin
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Posted 21 July 2012 - 06:33 PM
If we were ever going to set up shop on Mars or the Moon, to my mind the most sensible way to do it would be with underground bases.
#15
NuclearImplosion
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Posted 21 July 2012 - 07:48 PM
Reminds me of the cave in the B movie - Evolution.
Also tagged with mars, hole
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