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Originally posted by anakim
it is a dot. it looks more like whatever was underneath has been blackened out with ms paint. its took dark for the rest of the picture. can somebody please search for another camera angle of that area?
Originally posted by TheExaminer I'll try and find one of my analogue cameras and post an image of what I'm talking about. I'm curious as what exact high contrast camera is on that probe.
Originally posted by IgnoranceIsntBlisss
So do you think they're suggesting anything by giving the caves female names "which they refer to by the names Dena, Chloe, Wendy, Annie, Abbey, Nikki, and Jeanne"?
This is not an impact crater as it lacks a raised rim or ejecta. What's amazing is that we cannot see any detail in the shadow! The cutout shows this dark spot and a version that is "stretched" to best see the darkest area, yet we still cannot see details except noise (1380x782, 1 MB).
The HiRISE camera is very sensitive and we can see details in almost any shadow on Mars, but not here. We also cannot see the deep walls of the pit. The best interpretation is that this is a collapse pit into a cavern or at least a pit with overhanging walls. We cannot see the walls because they are either perfectly vertical and extremely dark or, more likely, overhanging.
The pit must be very deep to prevent detection of the floor from skylight, which is quite bright on Mars.
Originally posted by rocksolidbrain
On earth, these get quickly filled up with water, or erode away fast, but they last on mars. There are many such caves elsewhere on other planets too.
Originally posted by blue bird
I am particularly interested in spectrometric analyses regarding temperature emanating from hole - it should be different from the surface , and constant - due to no sun heating...is it warmer or colder?
Astonishing how the walls are almost perfectly vertical !?
Originally posted by IgnoranceIsntBlisss
So do you think they're suggesting anything by giving the caves female names "which they refer to by the names Dena, Chloe, Wendy, Annie, Abbey, Nikki, and Jeanne"?
And all you need to do is drive down any New York City street for a couple miles before you get swallowed up by one.
Originally posted by sardion2000
Originally posted by yuefo
Amazing! Not only the size, but the fact that there are at least 6 more of them. I wonder, is there any parallel to a feature such as this on earth? I've never seen anything like it.
Yeah there are places like this all over the planet and they are usually filled in with Water. There is one lake in Ontario that is something like 850 feet deep. There are of course much deeper ones in the Pacific.
Originally posted by fiftyfifty
Wow, i hope we get some kind of probe down there in the near future. Theres something similar on earth.. its fairly new and a bit smaller
Big Hole!
Originally posted by zorgon
Originally posted by rocksolidbrain
On earth, these get quickly filled up with water, or erode away fast, but they last on mars. There are many such caves elsewhere on other planets too.
Please post some links to these other caves, thanks