i have no clue but the first thing that i thought up was that it looked like part of a toilet seat('').

ummmm, nothing to see here, keep it moving... there's no man / alien made object here, keep going folks.. thanks for your cooperation....



seriously, looks interesting, not sure what it is though.

Its a petrified, Martian Krispy Kreme doughnut.

Looks like a washer embedded in carbon.

I'd say it looks like a satellite dish. I was first thinking crater (from a comet or such) but the bit in the middle doesn't really make sense.

i think this picture came up before and one of those science guys...kano i think..said it was a mark made by one of the rover's instruments??

but it looks like a 3 dimensional object to me...maybe its a giant petrified lifesaver?

Yeah, it kinda looks like it "sinks" in a bit.

It looks like there's two screws imbedded in it.

It doesn't look natural at all! What if this is evidence of previous life on Mars

however, it does look like it's partially buried in the soil...

maybe it's a handle or latch to a secret door leading to the underground bases that are on mars ?

It is almost certainly man-made. Look in the upper-right portion of the half-circle indentation. You will see two smaller circular impressions. These, appear to be impressions left my phillips-headed screws. You can see it better in the higher-res pic at the link in the first post.

The whole thing almost looks like an impression left by a lander foot or something. I would say definitely man-made though.

ummm, I just thought of something, what if it's actually part of the rover itself and its falling apart....

proberly the UKS mars lander begle maybe thats a far shot

It's not embedded.

Ther background material, has the half disc shaped object sitting on it, the upper half erroded away.
Then you see the small circular object in the middle of that, which is protruding upwards, as you can see from the small piece of material next to it.
It is an imprint.

It is a Martian Frisbee. I am sure that the martian who threw it and his friend were too busy looking at the rover to remember to pick it up and take it home. Those stinking Litter bugs!!

Did any of you actually bother looking at the link that I posted?

I Did i went throgh all those pics until i got to 52 of 53 and checked it out .Kinda a cool web site.