March 15, 2006

BIOLOGY REPEATS COSMOLOGY:

Cosmic 'DNA': Double Helix Spotted in Space (Bjorn Carey, 15 March 2006, SPACE.com)

Magnetic forces at the center of the galaxy have twisted a nebula into the shape of DNA, a new study reveals.

The double helix shape is commonly seen inside living organisms, but this is the first time it has been observed in the cosmos.

Posted by Orrin Judd at March 15, 2006 4:01 PM
Comments

That story is 5 years late.

Posted by: ghostcat at March 15, 2006 4:56 PM

All a giant accident. No Design (design?) here. Move along.

Posted by: John Resnick at March 15, 2006 5:44 PM

I wouldn't say that the Designer is a one trick pony, but if He likes something, He does have a tendency to use it again and again. He's sort of the Tom Wolfe of G-ds.

Posted by: David Cohen at March 15, 2006 6:07 PM

That brings up a question that I have had for a long time and hqve not been qble to find n answer for: is their any evidence that the double helix shape evolved, i.e., have any "close but not exactly the same" shapes been found in nature?

Posted by: Dan at March 15, 2006 9:31 PM

Yes, I believe there are. They are able to extract lower forms of DNA from prehistoric insects. One of the puzzles to me is that life seems to move from simple to complex, never the other way. A evolutionary biologist friend of mine was not able to explain this.

Posted by: exclab at March 15, 2006 11:07 PM

exclab;

Because there is more "design space" on the complex side, making a random walk more likely to walk in the more complexity direction.

And you do see some evolution toward simpler creatures, particulary in parasitic ones.

Posted by: Annoying Old Guy at March 16, 2006 11:06 AM

right. makes sense.

Posted by: exclab at March 16, 2006 12:53 PM

Dan,

"have any "close but not exactly the same" shapes been found in nature?"

RNA?

Posted by: Dave Kaiser at March 19, 2006 9:11 AM
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