[RegulatorCountry]

Dust feast? Yum.

[left that other site]

Mars Ping!

[Erik Latranyi]

More acidic?

I bet they burned coal.

[blueunicorn6]

“There’s oil in them thar hills.”

[jsanders2001]

Very cool photos of the Martian surface

[onedoug]

Very interesting.

Thanks for posting.

[dr_lew]

I was gonna say jarosite !-)

[Oatka]

There is an absolute dog of a 1960s Sci-Fi movie called "The Creeping Terror" that was ahead of its time. (The creature consisted of a bunch of guys crouched beneath an undulating carpet.)

This creature inhaled slow-moving earth-people at a pretty good rate, but it was only at the end, when the hero stood amid WWII surplus equipment in the "spaceship", that the voice-over revealed that the creature was dissolving the humans in order to analyze their components and was sending the info back to Mars.

Life imitates art - sometime it just takes a while.