“Meteorites Delivered The ‘Seeds’ Of Earth’s Left-handed Life, Experts Argue”, read the headline in this Science Daily story of April 7, 2008. This claim was quickly advertised around the world by the media as a major breakthrough in the effort to explain the origin of life on Earth by purely natural, unguided processes. However, what the headline claimed and what the story actually reported are two far different things. This story is a classic example of how the media mis-informs and dis-informs the public on issues of great import. It is also an example of the widespread misuse of science and scholarly research to promote the materialist/humanist agenda.

Here is how the media operates this abuse: first they make a bold claim such as that in the above story. They then report the details in the story, realizing that few will read beyond the headline and knowing that even if they do, very few will understand what is being written at a level necessary to evaluate the claim in the headline and accurately conclude that the headline’s claim is so weakly supported by the data that the story is not really worth reporting. Also when competent scientists criticize the story, if reported at all, will be printed on page 36 under a headline such as “Scientist Question Chirality Claim.” A title, which will guarantee that almost no one will read it.

Let us examine the above story to see this pattern at work. The opening paragraphs tell an imaginative tale of the early Earth:

“Flashback three or four billion years – Earth is a hot, dry and lifeless place. All is still. Without warning, a meteorite slams into the desert plains at over 10,000 miles per hour. With it this violent collision may have planted the seeds of life on Earth.” “Scientists have presented evidence that desert heat, a little water and meteorite impacts may have been enough to cook up the first prerequisites of life: The dominance of “left-handed” amino acids, the building blocks of life on this planet.”

The story claims to answer one of the greatest mysteries in biology, known as the “chirality problem.” Chirality here refers to the molecular mirror image symmetry of proteins. This symmetry is labeled as either left or right-handedness depending on how amino acid molecules polarize light. This is a very complex problem, which cannot be discussed here in detail, but in summary is as follows: With a few exceptions almost all of the amino acids in living systems are left-handed. However, in the inorganic world, amino acids because of the physics of their formation process are always found in mixtures of equal parts of left and right-handed forms. These amino acids are the raw material from which proteins are constructed. If protein synthesis occurs in a mixture of left and right-handed amino acids, even if the right-handed molecules constitute only a tiny fraction of the whole, the molecules formed will be biologically useless because they will fold in a manner that causes them to be inactive. Consequently when life was first synthesized on Earth it was necessary to start in environment of pure left-handed only amino acids.

Getting and maintaining a solution of purely left amino acids even under laboratory conditions is extremely difficult. This means finding a natural route to the synthesis of purely left-handed amino acids in the very messy natural world, full of right-handed amino acids, contaminants and thermodynamic problems seems almost insurmountable. Consequently origin of life researchers have long despaired over finding a materialist explanation for this phenomenon.

The article in question claims to provide a solution to this problem. According to this article: researchers examining the amino acids on the surface of some meteorites from Australia and Tennessee found a 5% to 10% excess of left-handed molecules over right- handed molecules. They then postulate that if this is combined with a series of natural processes (not currently known to exist), which could purify and amplify left-handed molecules, this concentration level can be increased to higher levels and (add another mere 100,000 or so other critical steps) you “voila” get life.

The article does not mention several interesting facts. First researchers have been examing meteorites for years looking for evidence of this chiral excess. Up until now all have always found that meteorites contain equal amounts of left and right-handed molecules. Ancient rocks in the Earth’s crust also always show this same racemic mixture. Would anyone like to bet that this finding will not be replicated when preformed at different labs using different meteorites? The fact that the excess of left-handed amino acids comes from the surface and not the interior of the meteorites should raise a big red flag because the surface is where contaminants from Earth life are likely to be found. Also not mentioned is the fact that even if there is a slight abundance of left-handed amino acids in meteors and a natural process did amplify this concentration (of which there is currently absolutely no evidence) it would still not provide the purely left-handed solutions of amino acids which is necessary for life to start from. In a mind-boggling step of illogic, the process of amplification postulated in this article requires preexisting biological organisms to carry out the process of amplification. So the way life originates under this scenario is through the mediation of preexisting life.

Why This Is Important

This piece of extremely questionable research will now begin to work its way into the public forum. It will become used as evidence to support the claim that “life originated through strictly natural processes.” It will probably become common knowledge that “meteorites brought left-handed amino acids to Earth and these formed the basis of life.” The reality however is that this common knowledge will be based on a greatly overstated case standing on the shakiest of evidence. This is reminiscent of that fact that many people now believe that there is genetic evidence to support the claim that homosexuality is genetically based. Such claims are based on several pieces bogus research, which were touted with extravagant headlines in the media. This research was all later shown to be specious, yet it is not unusual today to be told, “Everybody knows that scientists have shown that homosexuality is genetic.”

Source: www.eurekalert.org “Meteorites Deliver The ‘Seeds’ Of Earth’s Left-hand Life”, AAAS, April 6, 2008.

By: Lawrence Vescera Ph.D. - Isaac Newton Institute

This entry was posted on Wednesday, April 9th, 2008 at 11:49 pm and is filed under Apologetics, Articles, Astronomy, Bible, Biology, Christian Apologetics History, Christian Education, Education, Genetics, Geology, God, History, Intelligent Design, Philosophy, Politics, Science. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.