Monolith on Mars? Interesting image, page 2

The object is some 4.5 to 5 metres long, and I think it's just one of the rocks that fell from the top of that slope.

(click for full size)


This is the general area, with the object marked with a red circle (or more correctly, circumference )
(click for full size)


I have seen in other photos from Mars other rocks like that, that look like large blocks, and in one of those photos it was visible an area that was breaking apart in block-like pieces.

reply to post by smurfy

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The light (in that, the not map-projected image) comes from the bottom right (at an angle of 129.6º from the top, clockwise), and is consistent in all the image.

There are some massive images here from the area you are talking about:

hirise.lpl.arizona.edu...

reply to post by weedwhacker

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No, Google Mars does not have the imaging nessicary,lol you know that. Of course there should be some decent areas on GM(haven't been on there in quite a while as Mars is not my 'thing',lol) if they have been updated with HiRise images from the MRO. Even with these pictures we are still looking at large distances in each pixel, again you know that as well, but I will be redundant for the members who don't.

reply to post by weedwhacker

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This photo is from Mars (Latitude: -7.2°, Longitude: 267.4° E) and it's not a computer generated version of the photo, you can see the official page for that photo here.

reply to post by ArMaP

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Which image, the OPs or the one I showed? I am not sure they are the same to be honest.

reply to post by BartS

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You should see the images that have more than 2GB, those are BIG images.

reply to post by jkrog08

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I don't think that your first photo shows the same as the photo in the OP, and the second is the one on Phobos, while this one is on Mars.

reply to post by ArMaP

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LOL. I could see my computer just starting to smoke. I'm still downloading the RGB version to have a look.

It's probably a rock but is very interesting either way.

reply to post by super70

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I believe Mars has high winds correct?

Correct, although I am not ArMap I will answer that one too.

There are a few 'monoliths' on Mars, and of course the one on Phobos, I think most of the reported monoliths are natural possible. But two (the one on Phobos, and the one in the pic I showed) are definitely interesting IMO.

reply to post by ArMaP

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Yea I knew the second was Phobos, I too think the first is different. I am going to try and find the coord. and see for sure.

reply to post by weedwhacker

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Google Earth (when we select Mars from the "Planet" drop-down menu) has HiRISE photos, but this one is not yet in there, this is from this weak's release (they have wealy releases since the start of the mission, with larger releases to the Planetary Data System every 3 months)

reply to post by ArMaP

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Cool! Thanks.

OP had a question for you, about Martian winds. I think it's safe to say the winds might get strong, occasionally, but the atmosphere is so thin, their force is negligible. At least, if it's about toppling over a monolith!!

However, over time, even those thin winds can cause erosive forces. Even an ant can move a rubber tree plant!!


Well...checked the interwebs, found this:

What is the wind speed during a dust storm on Mars?


Despite secondhand estimates of higher velocities, official observed gust velocities on Mars are in the range of 80-120 mph (120-160 km/hr). At higher altitudes, the movement of dust was measured at 250-300 mph (400-480 km/hr).
The Martian atmosphere at the surface is only .006 (six tenths of one percent) the density of Earth's. So the high velocity would impart much less energy than a similar wind on Earth.

However, Mars' lower gravity also allows more dust to be picked up, and kept suspended by thermal imbalances. Long-lasting dust storms could present a significant problem for man-made devices and structures.

PlanetMars



[edit on 25 July 2009 by weedwhacker]

reply to post by super70

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I don't know if it is upright or not, the shadow may be hiding part of the object, so it could be almost a slab-like rock on its side.

The winds are very strong but with little energy because the air is so thin, so while it is strong enough to move the very fine dust around (and remove it from the Rover's solar panels), it is not strong enough to flip over a Rover, for instance, something that would be easy for a Earth wind at those speeds to do.

reply to post by jkrog08

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The area immediately surrounding the anomoly seems to be disturbed or of different texture than in the rest of the photo. Not saying that this means anything, just sayin

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