posted on Mar, 29 2003 @ 08:45 PM
Very interesting pictures, hadnt seen these before, thanks for the post
Well, looking at it, it is hard to tell, as noted before, because its not extremely close detail. The object does appear to be rather aerodynamic. On
earth, such aerodynamic shapes can occur in nature, mainly in highly arid areas with a good deal of windblown abrasives.
However, I have serious doubt as to the ability of Martian winds to do significant aerodynamic scouring of objects... yes, wind velocities are very
high on mars, however, due to the extremely low atmospheric pressure (1/100 of earth pressure) the potential sand load is very limited.
I notice that the area in front of the object seems undisturbed, with what appears to be a shockwave induced wake behind it. This certainly makes it
appear to be something that dropped on the surface at a flat angle. However, if it is an impactor, it would have had to come to rest at very low
relative velocity, since it is largely intact, and there are no signs of significant material being rolled up in front of the object and ejected
forward of the object on impact.
Also, this does NOT appear to be a natural object with wind blown debris built up around it: the "wake" behind it fans out away from the object:
This is indicative of some kind of impact shockwave. If it were a stationary object that acted to allow wind blown debris to build up around it, and
sheltered the lee side, it would form a narrowing tail as the winds began to wrap around the back side of the object. The wake shape would be reverse
of what is shown.