Slashdot Mirror


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."

18 of 211 comments (clear)

  1. LORD LOVE A DUCK by Anonymous Coward · · Score: -1, Offtopic

    Please do me.

  2. YAFP by Anonymous Coward · · Score: -1, Offtopic

    Yet Another First Post

    Cherish my balls in the name of the .test community

  3. ha ha by TunaPhish · · Score: -1, Offtopic

    second post, bitch!

  4. 3rd post! by Anonymous Coward · · Score: -1, Offtopic

    This thr0d ps1t is brought to you by the Sirius Cybernetics Corporation's Model Thr00 Thr0d Ps1t Generator.

    Share and enjoy!

  5. Mirror THIS! by Anonymous Coward · · Score: -1, Offtopic

    http://www.lightscion.com/Sounds/g_b_ruppert.mp3

  6. Oh.... CONtentious by Anonymous Coward · · Score: -1, Offtopic

    I was afraid it was still pretentious. Snooty meteorites.

  7. Well known? by Nix0n · · Score: -1, Offtopic

    Heh.

  8. First prime factorization post by Anonymous Coward · · Score: -1, Offtopic

    1969 = 11 * 179

  9. Slashdot celebrates Negro Month: Sammy Davis Jr. by Anonymous Coward · · Score: -1, Offtopic
    Sammy Davis Jr.

    On November 19, 1954, the career of Sammy Davis Jr. almost came to a sudden and tragic close. While driving to Los Angeles to record the title tune of the Universal International picture "Six Bridges to Cross", Sammy was the victim of an automobile smash-up and narrowly escaped death. He was so seriously injured that his left eye had to be removed. In spite of the terrible shock, Sammy rallied and went on with his work; he even insisted that he was the "luckiest guy in the world".

    Since his accident, Sammy's courageous spirit and ever-growing talent have won him increasingly enthusiastic audiences. Let's hear it for Sammy Davis Jr. !

    Celebrate Negro Month 2003 with Slashdot.

  10. God and meteors by svallarian · · Score: 0, Offtopic

    So does this prove that God was left handed?

    Steven V>

    --
    I patented screwing your mom. But it got revoked for "prior art."
  11. Blah, Blah Blah.... by Bob+Hopeless · · Score: 0, Offtopic

    Mmmm. Big words. Me no understand.

    1. Re:Blah, Blah Blah.... by Anonvmous+Coward · · Score: 0, Offtopic

      "Mmmm. Big words. Me no understand."

      I fail to see how this is off-topic. A very large portion of this article requires more than a novice understanding of the subject at hand.

      Whoever posted this article clearly did not consider the possibility that there are lots of people viewing it who have no clue what 'left handed' or 'right handed' means when talking about amino acids etc. It was inappropraite to mod somebody as off-topic for saying "I don't understand what this article means".

      Frankly, I, like the parent poster, would like a simple english explanation of what they meant.

  12. Re:YOU FAIL IT. by TunaPhish · · Score: 0, Offtopic

    nice, and I was third...

  13. Moulder was right by l33t-gu3lph1t3 · · Score: 0, Offtopic

    We really are all aliens!

    --
    ------- "From bored to fanboy in 3.8 asian girls" ----------
  14. Re:reason why not by Splab · · Score: 0, Offtopic

    well the first thing you can forget about - they never went there, hell will be frozen solid before I believe that that string attach thingy was more than 2 m. from earth... (how that mirror that reflects laserbeams to measure the distance to the moon got there?) That doesnt exist either!!! Heck this thread is a figure of you imagination - now quit being a nerd and think of some really hot blond chick!!!
    2. Send cowboy neil instead, last I heard he had some funky moves to deal with that.

  15. circquotes.tilted.com/video.html by Anonymous Coward · · Score: -1, Offtopic

    I am posting this link because it is important to show the world that circumcision IS MUTILATION. It is equal to cutting off a woman's clitoral hood in physiology, and circumcision is done WITHOUT anestesia in most cases still to this day!!!

    Here are some sites to prove my point:

    circquotes.tilted.com/video.html
    www.nocirc.org

    Please mod this up so more people can see how terrible circumcision is. Thanks, and help protect the children of the world by speaking up and saying NO to circumcision!!!

  16. Don't read that post!!! by Anonymous Coward · · Score: -1, Offtopic

    I would like to warn anyone not to visit any of the links posted by that poster. They are shocking mpegs.... It turned me stomach and made me sick. Viewer beware.. Good thing it was not modded up because most slashdotters would not be able to handle it because I shure couldn't..

    I need to puke now.

  17. Re:circular polarized light could forms L-amino ac by Anonymous Coward · · Score: -1, Offtopic

    > for an extraterrestrial origin for homochirality.

    Masturbating to g(r)ay pr0n only with your left hand?