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NASA Reproduces a Building Block of Life In the Lab

xp65 writes "NASA scientists studying the origin of life have reproduced uracil, a key component of our hereditary material, in the laboratory. They discovered that an ice sample containing pyrimidine exposed to ultraviolet radiation under space-like conditions produces this essential ingredient of life. 'We have demonstrated for the first time that we can make uracil, a component of RNA, non-biologically in a laboratory under conditions found in space,' said Michel Nuevo, research scientist at NASA's Ames Research Center, Moffett Field, Calif. 'We are showing that these laboratory processes, which simulate occurrences in outer space, can make a fundamental building block used by living organisms on Earth.'"

5 of 264 comments (clear)

  1. Re:An Application? by PopeRatzo · · Score: 5, Insightful

    It's heading towards understanding the origins of life on earth and anywhere else it may have arisen or came from.

    There's a committed portion of the US population who don't need to "head..towards understanding the origins of life" because they are absolutely certain that they know exactly how life came about because some Bronze Age scroll tells them so. They're not going to take kindly to anything that could challenge their certainty.

    I wouldn't be so sure that ten years from now this kind of research will be allowed, at least in public institutions. Don't forget that until recently there were bans on publicly-funded research which used cells from deceased embryos and lab-created blastocytes, because they "have souls".

    This is basic research of the most important kind.

    You think so, and I think so, but a very vocal and (seemingly) influential minority thinks it's heresy.

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  2. Re:Ah, Uracil! by MightyMartian · · Score: 5, Insightful

    Uh, no. They pretty much deny a number of facts. What they deny will change over time, and often will change depending on the audience. I have had Creationists deny in one moment any evolution beyond species variation, then the next claim that some degree of macroevolution is possible, then in the next try to rearend Biblical "kinds" into genuses and families. In fact, the only thing that Creationists can be counted on to declare as "fact" is that no matter how much evolution is going on, men and apes are not related.

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  3. Re:An Application? by mweather · · Score: 5, Insightful

    On a cosmological timescale, if the separate parts are capable of coming together, then their existence makes that event an inevitability.

  4. Re:Silly scientists.... by Chris+Burke · · Score: 5, Insightful

    I don't think we can use induction, in this case, to try to say that since we uracil can be formed with natural processes, all building blocks of life can be, too.

    We can't use induction as proof, because this is not mathematics.

    We can use induction to say that we can reasonably expect to discover that other building blocks can form from natural processes as well, though. At the very least, this reduces -- again -- the number of things we know can be formed naturally. The trend is pretty obvious, and if you're holding out on something coming up that can't be formed naturally then you'll probably be disappointed.

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    The enemies of Democracy are
  5. Re:An Application? by JoshuaZ · · Score: 5, Insightful

    The example of artificial insemination is a good example. When artificial insemination was first introduced there was a lot of outcry over it. Now the only major objection is from the Catholic Church. Others who still object do so out of side-effects such as the destruction of embryos rather than objecting to the process as a whole (which the Catholic Church does). And in a few years even the Catholics will likely be fine with it.

    But at the same time, this sort of example isn't so great. It involves a direct application: people are much more willing to change their ethical and moral attitudes when they see the actual benefits of a new technology.

    The general worry of poor treatment of science is a valid one. Sarah Palin railed against research involving "fruit flies" and John McCain complained about research about bear DNA, and neither of those even had any moral or ethical component to them. There's a very strong anti-science attitude in certain groups in the United States. Worse, it appears on both sides of the political spectrum (the anti-vaccination movement and much of the fringier elements of alternative medicine are very much on the left end of the political spectrum). Moreover, strongly negative attitudes about evolution and abiogenesis research have already won out in some Islamic countries. Look at Turkey for example which is a nominally secular country (indeed with disturbingly enforced secularism) and yet evolution isn't taught in schools and universities have trouble doing any research connected to evolution or abiogenesis. See for example http://scienceblogs.com/gregladen/2009/11/islamic_creationism_in_the_new.php for a quick summary of the current situation in the Islamic world. Moreover, Islamic creationists in Turkey have succeeded partially due to support and cooperation with Christian creationists in the United States. So it is possible for religious fanatics to really restrict this sort of thing: It has happened in other countries. Is it likely? Probably not. But it isn't impossible.