[SunkenCiv]

[Credit: Mars Exploration Rover Mission, Cornell, JPL, NASA]

[rfp1234]

Just ‘bumps in the road’.

[mylife]

Something was bubbling up at one time.

[Attention Surplus Disorder]

NO
KILL
I

[Obama_Is_Sabotaging_America]

Petrified bubbles formed by a thick substance.

[lurk]

Looks like Martian deer droppings. I wonder how big the deer are and what they taste like.

[GeronL]

CO2 bubbles bubbling up into mud??

[smokingfrog]

Ooops. I must have dropped some peanuts the last time I was there.

[beethovenfan]

Martian doots.

[SatinDoll]

There are deep sea floors on Earth where manganese has precipitated out into spherules, just like these.

It is possible that sometime in Mars past this was a sea floor on which something similiar occurred.

Just a speculation on my part, you all understand?

[Blogatron]

They all look like... Charlie Brown.
MORE FACES ON MARS!

[central_va]

Millions of dollars and we get grey scale photos?

[Vermont Lt]

Looks like what the rabbits leave on my lawn.

[sonofagun]

Looks like silidified molten rock that cooled falling through the atmosphere after, say, a meteor impact forming a crater of some sort.

[SunkenCiv]

The link was unofficial, and set up during Obama’s shutdown, remember that?

Working link:

https://apod.nasa.gov/apod/ap120925.html