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The Almighty Buck Mars Space Science

Conglomerate Rock From Mars: (Much) More Precious Than Gold 65

An anonymous reader writes It's the oldest rock on Earth--and it's from Mars. A 4.4-billion-year-old martian meteorite, found in a dozen pieces in the western Sahara, has ignited a frenzy among collectors and scientists; prices have reached $10,000 a gram, and museums and universities are vying for slivers of it. It is the only known martian meteorite made of sediment, a conglomerate of pebbles and other clumps of minerals from when the planet was warm, wet, and possibly habitable. The story of the discovery of the rock and its significance is fascinating, as well as the details presented about the economics of rare space materials. Apropos, this older story about missing moon rocks.
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Conglomerate Rock From Mars: (Much) More Precious Than Gold

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  • by rodrigoandrade ( 713371 ) on Tuesday November 25, 2014 @10:05AM (#48457301)
    I think I've seen that movie before...
  • So it's the Johnson & Johnson rock?

  • The price is still far from the cost of going to Mars to dig some sedimentary rocks from a few meters deep. But it's getting closer.

    • Re:Go get more? (Score:4, Interesting)

      by oodaloop ( 1229816 ) on Tuesday November 25, 2014 @10:29AM (#48457501)
      Do I really have to point out that a rock that left Mars 4.4 billion years ago will potentially have different things in it than a rock from today?
      • by itzly ( 3699663 )
        But will there be a difference in value if the modern rock is also sedimentary ?
      • If the round trip gets $100k/gram, I don't think anyone but the buyer cares if they're bringing rocks, meteorites or rubber ducks.

        Give the technology to De Beers and we'll have brides carrying pieces of mars in a year.

      • by Jhon ( 241832 )

        I read the article. The rock didn't leave Mars 4.4 billion years ago.

        "It began its journey to Earth more than 5 million years ago, about the time humans and chimpanzees were splitting from a common ancestor. That is when an asteroid struck Mars, catapulting the rock into space. "

        5 million years is still a long time but is really a drop in the bucket and I doubt the rocks would have changed much.

      • My understanding is that Mars is not tectonically active, so there might be a lot of 4.4 billion year old rocks just below the surface.

  • by koan ( 80826 )

    I haven't read how they know it's from Mars, just how exactly do they know?

    • by quenda ( 644621 )

      I haven't read how they know it's from Mars, just how exactly do they know?

      Luckily I RTFA. Isotope ratios is the main way. e.g. deuterium in water in the rock.

    • They compare the isotopic ratios in the rock with those observed by our various landers and crawlers on Mars.

    • It was inside a black wrapper with "MARS" written on it in red letters.

      The key clue here is the red of the letters, which prove the authenticity.

    • by Jhon ( 241832 )

      "I haven't read how they know it's from Mars, just how exactly do they know?"

      When they turned it over, there was a little sticker that said "Made on Mars".

    • by tbq ( 874261 )
      It would seem that given the estimate that it was in space for over 5 million years that it could be equally plausible that it came from another planet outside of our own solar system. Given the escape velocity needed for a rock to leave a planet's gravitational pull, an object traveling near that speed could travel quite a few light-years in 5 million years.
  • by Anonymous Coward

    I have never understood why they can be convinced that a random rock they find in the desert is actually from Mars. Sure, you can tell if something is a meteorite and you might be able to posit trajectories,but it's not like Marvin the Martian stood next to the rock to vouch for its authenticity.

    Yes, there's a non-zero probability of the asteroid-hits-Mars-and-ejectum-lands-on-Earth scenario, and the rocks may have properties consistent with conditions measured by the Viking lander, but it is magical think

    • Re:Martian? (Score:4, Insightful)

      by wonkey_monkey ( 2592601 ) on Tuesday November 25, 2014 @11:23AM (#48457925) Homepage

      I have never understood why they can be convinced that a random rock they find in the desert is actually from Mars.

      So, do some readingon the topic, and then you will understand. In the meantime, your lack of understanding doesn't change the fact that they can do this.

      but it is magical thinking to hold that such a rock definitely came from Mars.

      No, it's magical thinking to assume that science must be wrong because you know less than science does.

      Given the science used, it would probably require magical thinking to hold that such a rock did not come from Mars.

  • I'll just wait for the Mars Sample Return Project [nasa.gov] to saturate the market, thereby lowering the price.

  • by snarfies ( 115214 ) on Tuesday November 25, 2014 @11:02AM (#48457731) Homepage

    Oh, you mean like Nickelback?

  • Maybe I haven't had enough coffee yet, but something doesn't make sense. The rock is 4.4 billion years old, but is the oldest rock on earth? The rocks it impacted must thus have been older than that, or else it would have just been absorbed into the molten ball that was the earth. Also the article says it began its journey 5 billion years ago - so before it existed?
    • Maybe I haven't had enough coffee yet, but something doesn't make sense. The rock is 4.4 billion years old, but is the oldest rock on earth? The rocks it impacted must thus have been older than that, or else it would have just been absorbed into the molten ball that was the earth. Also the article says it began its journey 5 billion years ago - so before it existed?

      Never mind - I'm dumb. It only hit the earth ~1000 yrs ago. Still doesn't explain the 5 by vs 4.4 by difference.

    • The article says it left Mars 5 million years ago, which I think clears up both of your confusions.

    • Good critical thinking. Yes, indeed, you are right. Reminds me that NASA touted a Mars rock a number of years ago, and even suspected it had the remains of life on it. It turned out that it was not that old, but there were remains of life, early earth microbes.
  • - 2.5 times more expensive that weapon grade plutonium
    - twice cheaper than Soliris (medical drug)
    - 3 times cheaper than tritium

    LSD and diamonds can also be in this price range but this is a bit more complicated to estimate.

For God's sake, stop researching for a while and begin to think!

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