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Mystery Rock 'Appears' in Front of Mars Rover

news.discovery.com

41–50 of 93 posts

Re: Mystery Rock 'Appears' in Front of Mars Rover

#44
post #18
post #8

How big a deal is it, scientifically speaking, that the rover has access to the freshly-exposed underside of the rock?

You'd think they would start to put a plow or til on these rovers.

Or a digging laser. Dig out a small area with a laser and wait for the other side to cave in. We have digging lasers, right???

Re: Mystery Rock 'Appears' in Front of Mars Rover

#45
post #38
post #35

Earlier quoted context omitted.

CSS has race conditions ?

It's JS, check the gist. The race condition is with image loading. I don't think CSS has race conditions, but someone please prove me wrong here :)

I suppose implementation could have, but since the language is declarative, I think that could rightfully be considered a bug.

Re: Mystery Rock 'Appears' in Front of Mars Rover

#46

The locals are upset at our occupation and are throwing rocks at us. Pretty obvious really.

I think that's the unsaid part of the story, everyone secretly believes that some intelligent being placed that rock as a peace token (otherwise this kind of news won't make headlines)

Re: Mystery Rock 'Appears' in Front of Mars Rover

#48
post #8

How big a deal is it, scientifically speaking, that the rover has access to the freshly-exposed underside of the rock?

Pretty big. I've often wondered why they don't send a dragline digger to Mars, so they can dig a decent trench. When Spirit's wheel broke and they started dragging it along, digging a little trench, they made a nice discovery and that was with something not designed to dig at all. If they could get a few feet down, who knows what they could find?!

It may have been big, but curiosity has a scoop to scoop up dirt, a drill, and a laser that can vaporize rock to look inside of them. It's not like the rovers can only look at the surface.

Re: Mystery Rock 'Appears' in Front of Mars Rover

#49
"“So my best guess for this rock … is that it’s something that was nearby,” said Squyres. “I must stress that I’m guessing now, but I think it happened when the rover did a turn in place a meter or two from where this rock now lies.”

Opportunity’s front right steering actuator has stopped working, so Squyres identified that as the possible culprit behind the whole mystery."

Reading a lot of speculation, but this seems pretty plausible - without the need for anything crazy like aliens, subterranean oozing or a rock falling from space and just so happening to land in front of the rover... But, Hey! Perhaps it is martian-cow dung afterall!

Re: Mystery Rock 'Appears' in Front of Mars Rover

#50
post #8

How big a deal is it, scientifically speaking, that the rover has access to the freshly-exposed underside of the rock?

Pretty big. I've often wondered why they don't send a dragline digger to Mars, so they can dig a decent trench. When Spirit's wheel broke and they started dragging it along, digging a little trench, they made a nice discovery and that was with something not designed to dig at all. If they could get a few feet down, who knows what they could find?!

The Exomars project will land a 2 metre vertical drill on the surface, sampling much deeper than anything done so far.

It's just a question of priorities. Drilling 4cm into a rock with a specific surface abrasion tool is a long way from plunging a 2 metre metal shaft into unknown terrain. Engineering this so it has no chance of jamming, breaking, overheating etc is not gonna be a trivial task. How do you lubricate a drill without contaminating the environment and with such a wide temperature variation?

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