Two: to the person who's talking about crop circles, People admitted to making them. People make them all the time. Just because no one sees them just goes to prove that people are unobservant and that these people are good at not getting caught.

If there is infact water on Mars there must be forest and this log may have once gotten washed up by a river, then the river dried or something and the log remained.
According to picture however, this log looks new or atleast cemetrically cut by a being who lived on Mars at one point, before it died.

Well, see, YouTube has this box where you can type things and it will actually give you a video of what you typed in, kind of like the uber-geek video store clerk

OK, fair enough, here's a couple links.

http://kr.youtube.com/watch?v=x66ZSvtRzKI
http://kr.youtube.com/watch?v=I2IHn6qcRTA

It is simply not believable to me that all of those were made by even a large and highly skilled team of hoaxers at night. It is not just the fact that they've never been seen, but just the absolute perfection of them. They don't have any flaws whatsoever. They look like they were designed by computer algorithm. Try to draw any one of those designs freehand on a piece of paper, and see how it turns out. Now imagine you are stomping about in tall grass trying to recreate the same design 500 times bigger. Good luck.

Now, as I see it, there are two possible explanations.

One, an active and empathetic alien race is directly trying to communicate with us in the langage most common to our two species - the language of symbols. If that's the case, we would be well advised to listen.

Two, it is some sort of military technology, such as computer controlled microwaves being beamed down from space or from airplanes. That would explain why the preponderance (although certainly not all) are in the U.K. Who knows why they would be doing it, it might be to create a false belief in E.T.'s.

Either way, it is something that deserves to re-enter the national dialogue and imagination, especially considering the increasing complexity and symbolism of the more recent designs.

If you can present any other plausible explanations than those two, please go for it.

They tend to be in sparsely populated places and are stamped out during the night?

Guy 2: "The photo did what?"

Guy 1: "A whole conspiracy theory rush in the blogosphere."

Guy 2: "You're not making any sense!"

Those rumors are completly false, as are the ones that Rick Astley is an alien and Rick Rolling everyone for world domination purposes.

Not circles, but insanely elaborate and detailed images. Without any flaw of any kind. Hundreds last year alone. And still, noone has been seen making them - not once, not ever. Explain that!

I also really doubt it's just a rock. That would be a very long, thin, weird rock.

If you saw that Mythbusters where they debunked the moon landing "hoax," it was really striking how shadows could do all kinds of weird stuff, making something convex look concave, etc. I'm still thinking this is a fissure into the ground, and it's just a weird shadow.

Of course it also looks like a rock. Considering the weathering pattern on the rocks around it, a wood like texture developing on it doesn't seem that implausible.

Seriously though, why are there so many conspiracies about space? I mean, how exactly does it immediately effect us? If it ever does come to a point where we, the general public, are effected by whether there's wood up there or not, and I can only assume that would be on account of us BEING there, we'd probably figure it out pretty quick when we started tripping over the randomly placed logs.

http://blogs.discovermagazine.com/badastronomy/2008/12/01/pining-for-m ars/

I like this part:
"But one website insists it is a leaked image that ‘could get someone killed.’"

when.. in the paragraph just above:

"The unusual image was featured in a NASA press release in 2004,"

So, NASA 'leaks' top secret stuff, through the medium of... official press releases??

Yes because if the public ever found out that there were trees on Mars... then... um.... we would know that, there were trees... on Mars. Come on crazy conspiracy guys, you aren't even TRYING any more.