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[NASA] NASA Researchers: DNA Building Blocks Can Be Made in Space

post #1 of 24
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Quote:
NASA-funded researchers have evidence that some building blocks of DNA, the molecule that carries the genetic instructions for life, found in meteorites were likely created in space. The research gives support to the theory that a "kit" of ready-made parts created in space and delivered to Earth by meteorite and comet impacts assisted the origin of life.

"People have been discovering components of DNA in meteorites since the 1960's, but researchers were unsure whether they were really created in space or if instead they came from contamination by terrestrial life," said Dr. Michael Callahan of NASA's Goddard Space Flight Center, Greenbelt, Md. "For the first time, we have three lines of evidence that together give us confidence these DNA building blocks actually were created in space." Callahan is lead author of a paper on the discovery appearing in Proceedings of the National Academy of Sciences of the United States of America.
SOURCE
This is great news!
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post #2 of 24
Have NASA just answered one of the most significant questions humanity has ever asked?
post #3 of 24
Quote:
Originally Posted by Boyboyd View Post
Have NASA just answered one of the most significant questions humanity has ever asked?
Where we came from? =) seems so
post #4 of 24
NASA is late.... lizard fish pooped out some monkies that had some hardcore action which then pooped out humans.
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post #5 of 24
The life we're descended from could be from anywhere, and while it seems perfectly reasonable that life could form in space (anyone remember the bacteria from Apollo?) it doesn't mean our life formed in space.

Still very interesting read, our chances of finding other sentience in the universe just went way up imo

edit: Just to clarify, by "life" I'm referring to everything from amino acids to multicelled organisms
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post #6 of 24
This doesn't mean that "life" formed in space...some building blocks of it formed there and then when the metorite crashed into earth it met up other building blocks and they hooked up, did a little a dance, and created the first self replicating strand of amino acids.

Still...I think this means that we can all claim to be at least part alien.
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post #7 of 24
Not saying it did, not saying it didn't. I know what they said in the article, but it would be cool if we came from space, even if earth-based development is significantly more feasible. Only time will tell.
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post #8 of 24
This is awesome :O
post #9 of 24
Quote:
Originally Posted by darthjoe229 View Post
The life we're descended from could be from anywhere, and while it seems perfectly reasonable that life could form in space (anyone remember the bacteria from Apollo?) it doesn't mean our life formed in space.

Still very interesting read, our chances of finding other sentience in the universe just went way up imo

edit: Just to clarify, by "life" I'm referring to everything from amino acids to multicelled organisms
Is this the bacteria you are referencing?

http://www.lpi.usra.edu/lunar/missio...ents/surveyor/
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post #10 of 24
Now what puts the blocks together? A 3 year old Astro-Child?
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