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Originally posted by zorgon
Originally posted by super70
Very well put phage, the most likely cause of the tracks.
Nice work fellows... Post rolling rocks then identify them as rolling rocks
Originally posted by TheGreensGoblin
they look to me kinda like the 'rolling rocks' of death valley which are regularly found with huge trails in the sand (just like slugs but without the slime!). here is a site discussing them, not a very good site mind, but at least you can get what I'm talking about!
Originally posted by antar
What kind of tracks are they zorgon? Does the rover leave such a signature or is it something else?
Originally posted by chapter29
reply to post by Soylent Green Is People
so I can easily see a rock rolling downhill, then changing direction slightly as it encounters little mounds and valleys.
Question - if someone had said they could EASILY see the trail being created from a martian walking/driving around, wouldn't you take objection with that? Assumption here, but a good one I think...
I see other objects that look very similar in size and formation around the same vicinity; and I also take note with the angles and turns the "object' has taken. You would assume that if someone or something of higher intelligence did go for a drive or walk, why waste all that energy in going in so many different directions? Unless there was a martian party and someone forgot to lock up the rover...
So, one probable explanation is that it is indeed a rock that has been moved via nature...but nothing can be EASILY determined from the pictures we get.
Originally posted by TheGreensGoblin
reply to post by zorgon
aha, thanks for that Zorgon. You're right, upon reflection my post was misleading and irrelevant but it wasn't my intention, I was just making the point that this kind of thing is known to occur on Earth...
The MOLA works by transmitting a laser pulse down towards the surface. The pulse is reflected off the surface (or cloud) back to the instrument, where the return is detected. The two-way travel time is recorded, giving a measure of the distance between the spacecraft and the surface. Corrections are made to this distance based on atmospheric effects and accurate tracking of the spacecraft position allows an estimate of the surface altitude or cloud height. A large number of surface altimetry measurements will be taken, and combined to produce a global topographic map.
The MOLA consists of a diode pumped, Q-switched Nd:YAG laser transmitter with a pulse energy of 40-45 mJ. It can send continuous bursts of 10 pulses/sec, each pulse having a beam diameter of 1 cm and a divergence of 0.45 mrad. The reciever is a 50 cm parabolic antenna with a Si APD detector and four electronic filters (20, 60, 180, and 540 ns). The reciever field of view is 0.85 mrad with a 10 degree cone about the mirror exclusion. The vertical resolution is 2 m local (relative) and 30 m
global (absolute). The horizontal resolution is 160 m. The altimeter is run by a 80C86 microprocessor with 54HC family logic.
The altimeter is mounted to the Mars Global Surveyor instrument panel.
Originally posted by just theory the fact is these rocks do move and the same can happen on mars, rocks can roll or slide under the right conditions,
these images might be of interest to geologists but they show nothing of interest to do with the subject of this forum,
Originally posted by zorgon
All that to say the area is hilly and its most likely rocks rolling on uneven terrain?
Originally posted by NephraTari
Perhaps we are not aware of everything that has been sent.
Food for thoughts! I like your abvatar super70. I copied your photo , edited to put your name on+ATS.
Originally posted by super70
I'm 90% sure this is a rock, I have posted like images before. But when I find an object that seems to defy what like objects are doing in the same vicinity, I post it. My point was that the other objects left straight tracks over the same ground, and the object in question maneuvered multiple times. As you can see on "turn 1", the angle of direction turns extremely sharp. What did the object hit? There is no larger stone in its path, and the tracks left never jumped or had a noticeable impact on its very defined track. It seems to me that if indeed there were an impact against some solid object, that the track would be altered in a visible way. It simply "turned" and swirved, then turned again. I might mention that no obviouse hill is present on its downhill course.
Here is another object that I found and posted in the past...