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Martian Rock Found In Morocco

daeley writes "The BBC is reporting that a rock found in 2001 in Morocco is originally from Mars, similar in composition to the 1977 Antartica find. 'The meteorite would have been blasted off the Red Planet by an impact and may hold clues to Mars' watery past... scientists say the fragments are magmatic rocks. Magmatism is the main process by which water moves from the core of planets to their surface.'"

21 of 203 comments (clear)

  1. So after sending Spirit millions of miles... by bc90021 · · Score: 5, Funny

    ...we find another Martian rock here on Earth. For those of you that don't think fate doesn't have a sense of irony, I think that this story proves it. ;)

    1. Re:So after sending Spirit millions of miles... by stevesliva · · Score: 3, Interesting

      Even more ironic-- it contains olivine. Spirit's found some of that.

      --
      Who do you get to be an expert to tell you something's not obvious? The least insightful person you can find? -J Roberts
  2. Cool! by ZipR · · Score: 5, Funny

    Instead of us having to go to Mars, Mars is coming to us!

  3. Magmatism by deuist · · Score: 3, Funny
    "Magmatism is the main process by which water moves from the core of planets to their surface."

    I thought that magnetism was a process that involved two pieces of metal being attracted to each other. Oh, you said magmatism ...

  4. water at the core? Ummm, no. by Ralph+Spoilsport · · Score: 3, Informative
    The core of a planet is too hot and dense for water.

    AFAIK, the parent is wrong.

    RS

    --
    Shoes for Industry. Shoes for the Dead.
    1. Re:water at the core? Ummm, no. by adlai · · Score: 5, Interesting

      Yeah, I saw the "magmatism is the main process by which water moves from the core of planets to their surface" thing and coughed quietly to myself *cough* *cough*.

      Core differentiation generally happens REALLY early in planet's history, and it seems to me that it isn't precisely correct to say magmatism in this context, (which implies "volcanism" at least to me). Bouyancy and heat are what really moves water to the surface, since it is a) much less dense than rock (think about it) and b) not real stable at real high T.

      In other words -- what moves water around is a whole mess of ugly chemistry and thermodynamics that I'll leave to my petrologist buddies to explain to me (dah? dah!) with odd pentagonal diagrams.

    2. Re:water at the core? Ummm, no. by toxic666 · · Score: 3, Interesting

      Oh, you have no idea how well you summed up the petrology of this meterorite:

      "It is described as a peridotite, an extremely rare type of Mars rock consisting of the minerals olivine, pyroxene and plagioclase glass."

      This beastie originated near the mantle, at great depth. And there is NO water down there. If the meteorite contains water, it may be from Mars, but it may also be contamination from earth.

      I've seen zero evidence for either, and after NASA claimed they had proof of Mars life in a meteorite, I will accept no evidence until validated by and outside lab.

  5. War of the Worlds by grungebox · · Score: 3, Funny
    Maybe those rocks are the results of primitive Martian interplanetary weapons tests. After all, they have to make sure mere rocks can make it here before they send plasma-nuclear-hyper-transmogrifying-death bombs, right?

    Oh geez, I better load up on duct tape if the fucking Martians are coming.

  6. It's only fair... by QSO_Wizard · · Score: 5, Funny

    the Earth is littering Mars with spacecraft debris. Mars just wants a little payback.

  7. More importantly... by paul248 · · Score: 4, Funny

    Did they find Beagle 2 on it?

  8. So? by toxic666 · · Score: 4, Insightful

    We have rovers on Mars collecting data that has no chance of being contaminated by a meteorite impact, travel through space and terrestrial processes.

    I'll take data from the horse's mouth.

    Rock on, Rovers!

  9. Suspicious.... by Ironica · · Score: 4, Funny

    From the article: The team that found it was led by experienced meteorite hunters Carine Bidaut and Bruno Fectay, who have now found six rocks from Mars - a record.

    Interesting that they seem to know *just* where to find Martian rocks.

    Quick! Get them! They're Martian spies!

    --
    Don't you wish your girlfriend was a geek like me?
  10. Re:That explains it by bad_fx · · Score: 5, Informative

    Uh...Nice cut and paste. Maybe you should think of something original next time.

  11. Re:That explains it by mars_rover · · Score: 5, Funny

    That's odd... the piece of Mars I have on my desk is composed of entirely different substances: Milk Solids (40%), cocoa, emulsifiers, caramel, glucose etc. Scientists believe that it came from the Mare Saccharum region on Mars...

  12. circumstances regarding how it got here by plasm4 · · Score: 4, Interesting

    the distance from the earth to mars, at its closest is more than 55 million kilometers (33 million miles). the article states that about 20 such rocks have been found on earth so far. It seems that Mar at some point must have undergone some pretty serious bombardment from asteroids, and big ones too it seems, if the impacts caused martian rock to leave its gravitational field, and come all the way to earth. It seems like trying to throw a dart at an ant from 100 yards

    1. Re:circumstances regarding how it got here by Paul+Cameron · · Score: 4, Informative
      It seems like trying to throw a dart at an ant from 100 yards
      Your analogy is flawed.
      1. You're ignoring gravity, the rock hits Earth partly because the earth is altering it's trajectory
      2. If the rock does not directly hit Earth, the two can swing around the sun and try again. The rock won't necessarily fly out of the solar system
  13. Re:What's next by Tablizer · · Score: 4, Informative

    What's next? Are we now going to find out that the rocks being analyzed by Spirit are actually from earth?

    It is easier for Mars debri to transfer to Earth than the other way around because of the stronger gravity on Earth. I read somewhere that Earth's gravity is on the borderline of being too strong to allow rocks to escape via meteor impact. One might say that some impacts are much stronger than others so that fast ones might still do it. However, past a certain impact energy, ejected material vaporizes such that there are no projectiles left.

    In other words, too slow and rocks cannot reach escape velocity. Too fast and rocks vaporize from the heat of the impact. The middle "just right" window may not exist, or barely exist on Earth, but is relatively wide on Mars because of lower gravity.

    Thus, if there are Earth rocks on Mars, there will be far far fewer compared to the other way around.

  14. Re:A rock found in my backyard by Tablizer · · Score: 5, Interesting

    Perhaps you mean another, now defunct, Sun. Ours is still made of Hydrogen.

    Almost every piece of matter on Earth came from defunct Suns (stars) what exploded at the end of their lives. The very monitor you are staring at is left-over star boom boom. It is suspected that heavy elements like gold came from supernovas or hypernovas, really big stars with really big booms, the kind that can outshine entire galaxies for a few days or weeks. So next time you see a gold ring, realize that it came from the largest kind of explosions known in the entire universe. Booms beyond human comprehension.

  15. Memo by cubicledrone · · Score: 4, Funny

    Better turn down the power on Spirit's drive wheels.

    --
    Business isn't willing to pay for products, innovation and careers, so we get brands, mortgage commercials and layoffs.
  16. Re:That explains it by instarx · · Score: 3, Insightful

    What you are calling "science" is really science reporting. Science reporting summarizes the real science and leaves out the qualifiers and statistical information from the original published peer-reviewed work. Science reporting frequently offers broad and sweeping conclusions of hard fact from original work that only reports on evidence that such a conclusion may be true. Even science textbooks are basically summaries of the original research and omit the nuances. Science reporting is a hollow shell of real science.

    To understand what the scientists are really saying you have to go read and understand the original articles.

  17. Re:This sounds like BS by PhuCknuT · · Score: 3, Insightful

    Imagine a large asteroid hitting mars. There will be BILLIONS of pieces sent into an orbit similar to mars, many of which will then be gravtationally tossed into other orbits by mars itself. It's not hard to imagine many many of these eventually landing on earth within the billion years or so since then.

    There are alot more than 6 pieces that have been found, these two people just happen to collect ALOT of meteorites and happen to know how to recognize a martian one. Of course it sounds like too much coincidence to be true when you think only 6 have hit earth and all been found by the same people, but in reality thousands and probably millions have hit earth, and many have been found and not recognized for what they are. It only makes sense that the people who know how to recognize them would find the most.