Under the surface of mars
- Thread starter Goldfreak
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I thought for a moment there Goldfreak that you had been to the zoo, and had your camera on zoom as you took a snap of the Mandrill enclosure from the wrong angle :lol:
I would suggest that it is an artists impression.
Looks cool though.
Looks cool though.
what could have made the blue stuff. Artic sea ice can get blue but not such a vivid blue.
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It may be a computer interpreted / enhanced image too, depending on how the image was captured.
Azure. Or water ice.
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I can shed some light here.
"Bray added that the color of this particular crater fascinates her, because she can see the impact wave clearly a dark zone where dust was shifted off the surface. Beneath is likely basaltic rock, based on what we know of Mars geology and the colors showing in the image. There also are zones with a bluish tint, which may or may not be exposed ice. While the crater was blasted in the Valles Marineris region, near the relatively warm Martian equator, it's possible there could be a little ice underneath the dust, Bray said."
Full article here. https://www.space.com/mars-fresh-crater-nasa-mro-photo-2019.html
From the Baz, Mars has a carbon dioxide atmosphere, so sunlight and colour behaves differently there. Daytime sky is pink, while sunset is blue, opposite to our own in an oxygen-nitrogen rich atmosphere. The cameras know this and are able to calibrate, using known colour plates, (like the ones mounted on the rovers).
So even though the photos are artificially coloured, they are the closest approximation, knowing how white light is absorbed or reflected in that particular gas. There are photos on planets and space photos, where false colour is used to highlight particular areas of interest, or to assign colours to particular gasses.
Try putting a good raw image of the moon into photoshop and raising the saturation, you will see that there are colours on the moon that, while slight enough to escape the naked eye at this distance, the surface is covered in a multitude of colourful rock and dirt. Lots of areas of the moon are bright yellow or even orange. The men who walked on it came back covered in the stuff. Amazing.
Baz.
"Bray added that the color of this particular crater fascinates her, because she can see the impact wave clearly a dark zone where dust was shifted off the surface. Beneath is likely basaltic rock, based on what we know of Mars geology and the colors showing in the image. There also are zones with a bluish tint, which may or may not be exposed ice. While the crater was blasted in the Valles Marineris region, near the relatively warm Martian equator, it's possible there could be a little ice underneath the dust, Bray said."
Full article here. https://www.space.com/mars-fresh-crater-nasa-mro-photo-2019.html
From the Baz, Mars has a carbon dioxide atmosphere, so sunlight and colour behaves differently there. Daytime sky is pink, while sunset is blue, opposite to our own in an oxygen-nitrogen rich atmosphere. The cameras know this and are able to calibrate, using known colour plates, (like the ones mounted on the rovers).
So even though the photos are artificially coloured, they are the closest approximation, knowing how white light is absorbed or reflected in that particular gas. There are photos on planets and space photos, where false colour is used to highlight particular areas of interest, or to assign colours to particular gasses.
Try putting a good raw image of the moon into photoshop and raising the saturation, you will see that there are colours on the moon that, while slight enough to escape the naked eye at this distance, the surface is covered in a multitude of colourful rock and dirt. Lots of areas of the moon are bright yellow or even orange. The men who walked on it came back covered in the stuff. Amazing.
Baz.
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