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Murchison Meteorite Still Contentious

An anonymous reader writes "The well-known 1969 meteorite that fell 60 miles north of Melbourne, Australia, remains remarkably contentious today. The 100 kilogram carbon rock : a) contains pre-biotic proteins and 12% water; b) harbors 50 amino acids not found on Earth; c) favors the tell-tale signature of biochemistry based on a dominant left-handed chirality, compared to random or racemic mixtures found in test-tube syntheses. While terrestrial contamination (even interior to the meteor) may discount this so-called 'Murchison meteor', its light isotopes of carbon and nitrogen suggest the left-handed amino acids not found elsewhere on Earth have the same ratios as the right-handed ones. This would not be the case if, say, bacteria was just making the left-handed ones after impact. Seems quite a controversy from down-under."

14 of 211 comments (clear)

  1. Re:Well known? by Anonymous Coward · · Score: 5, Funny

    Guess the DNA spiral the other way just like the water in the toilet down under. ;)

  2. Leftorium by The_Rippa · · Score: 5, Funny

    And chunks of it are now on sale at Ned Flander's Leftorium.

    Fan-diddly-tastic!

  3. Sounds like lawyer talk to me!. by setrops · · Score: 5, Funny

    I m just a simple caveman, your fire scares me. These pre-biotic proteins you speak of are unfamiliar to me!

    1. Re:Sounds like lawyer talk to me!. by setrops · · Score: 2, Funny

      In SOVIET RUSSIA, Ya nie znaiou chto skajit "pre-biotic proteins, Hrug"

      Sorry for the awful phonetic's

  4. The real test... by Anonvmous+Coward · · Score: 3, Funny

    .. is find and orifice and pump the meteorite full of shampoo. If all the 'life' on it dies, then it's extra terrestrial. :D

    1. Re: The real test... by Black+Parrot · · Score: 2, Funny


      > .. is find and orifice and pump the meteorite full of shampoo. If all the 'life' on it dies, then it's extra terrestrial.

      Ah, I wondered why my alien abductors did that!

      --
      Sheesh, evil *and* a jerk. -- Jade
  5. Re:Just want to ask.. by Anonvmous+Coward · · Score: 2, Funny

    "How would organic material from earth make it into the center of an object like this? "

    I used to have a container of mayo in the fridge that'd prove to you it's not impossible for life to grow in surprising places, but it'd also kill your interest in learning how it managed that.

  6. Amino Acids? by JRHelgeson · · Score: 2, Funny

    Is this another debate as to which is better? Lefties or Righties?

    --
    Good security is based upon reality and common sense. Common sense is a function of having common knowledge.
  7. Re:Blah, Blah Blah.... by nomadic · · Score: 4, Funny

    This is slashdot, so you're expecting to nod knowingly and pretend you understand it. Or do you really think all those people who discuss quantum mechanics at length really know what they're talking about?

  8. chirality by psychogentoo · · Score: 3, Funny
    favors the tell-tale signature of biochemistry based on a dominant left-handed chirality

    Sounds very sinister. :)

  9. Re:Blah, Blah Blah.... by Cyno01 · · Score: 3, Funny

    It's quantum physics, you can't know what your talkign about. Reminds me of a /. sig i saw, "Quantum Theory; Calvinball for grown-ups."

    --
    "Sic Semper Tyrannosaurus Rex."
  10. Hey! How come... by GeneralEmergency · · Score: 2, Funny

    ...all these carbonaceous chondrites look EXACTLY like chunks from the Piggly-Wiggly parking lot on Alderaan?

    --
    "A microprocessor... is a terrible thing to waste." --
    GeneralEmergency
  11. It's really quite obvious ... by Snork+Asaurus · · Score: 4, Funny
    If the meteorite had landed north of the equator, they'd have found mostly laevo-rotatory amino acids. Since, it landed down under, where everything turns in the opposite direction, they found mostly dextro-rotatory amino acids.

    Case closed and make mine a Foster's. G'day.

    --
    Sigs are bad for your health.
  12. lucky they were pre-biotic proteins... by cyril3 · · Score: 4, Funny

    otherwise they would be sitting in a detention centre right now appealing their refusal of refugee status by the Australian Gumment. Bloody alien queue jumpers will not be tolerated.