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Can you do this with the 'before' picture so we can compare? (your picture really clarifies that area)
Alright after reading a bit, I am going with meteorite at this point.
reply to post by funbox
A rock this size doesn't have to leave a crater, considering the gravity of Mars is supposedly a third of so of Earth's (you can correct that if it's wrong). Although the atmosphere shielding isn't so great on Mars, but still.
Even on Earth there are cases of meteorites that didn't create a very noticeable impact markings.
I am willing to say no two events are alike, they are all unique in terms of physics of entry and impact etc.
Consider what if this rock came down and tumbled before coming to a rest here?
So I am saying :
It is still possible this is either the entire meteorite or a fragment of a slightly larger one that impacted nearby and shattered.
The lack of known associated cratering is not evidence against such a proposition automatically.
"Sulfur, Manganese, Magnesium" etc ??
That seems to be aligned with possible meteorite compositions, although perhaps rare.
It's possible I think.
reply to post by smurfy
The popularly accepted options for the appearance of the "Pinnacle Island" are namely (a) caused by Opportunity's wheels dislodging it, and (b) as crater ejecta.
There are other potential explanations, such as it rolled to the position having moved from an uphill position without external interference; Martians put it there; it landed there as a meteorite; etcetera.
Whilst I can and do subscribe to some or a few as yet unproven theories with regard to Mars, I feel that option (a) represents the best explanation. Just my opinion.
reply to post by muzzleflash
my apologies, but in the other pictures , the black and white one it doesn't appear there, it could be a meteorite, I wonder if the curiosity remember to pack its magnet to give it a test, I just have difficulty in seeing it falling from the sky and landing in that spot, dam how fast do meteorites go again?, this one must have had air breaks and a parachute
are you sugesting that someone knocked all the scenery because its in a warehouse in alaska?
Kind of creepy if you ask me. I mean, compare the two photos. The rock appears out of nowhere. Surely if the rover's dragging wheel scraped it up you wouldn't be able to see the ground hasn't changed under the 'rock' from before.?? If you scan the areas in close proximity, all of the rocks of decent size haven't changed, or been moved. This is so odd...