NASA Discovers Life's Building Block In Comet 148
xp65 writes "NASA scientists have discovered glycine, a fundamental building block of life, in samples of comet Wild 2 returned by NASA's Stardust spacecraft. 'Glycine is an amino acid used by living organisms to make proteins, and this is the first time an amino acid has been found in a comet,' said Jamie Elsila of NASA's Goddard Space Flight Center in Greenbelt, Md. 'Our discovery supports the theory that some of life's ingredients formed in space and were delivered to Earth long ago by meteorite and comet impacts.'"
Panspermia? (Score:3, Insightful)
Or "space spooge" as the kids call it these days. So where'd that life come from?
Glycine isn't that complex (Score:2, Insightful)
http://en.wikipedia.org/wiki/Glycine formula is NH2-CH2-CO-OH
It's not that complicated. Shouldn't we be waiting to get excited about something more complex?
Re:How sure? (Score:5, Insightful)
No, all it means is that some of the chemicals needed for Earthly life are also found in elsewhere in the Solar System. Given that the entire Solar System formed out of the same molecular cloud that is not very surprising.
Re:How sure? (Score:3, Insightful)
This comet orbits the Sun every 6.39 years.
The chemicals on it might just as well have been knocked off from Earth to begin with as coming from elsewhere in the Solar System.
Re:Aren't these people supposed to be scientists?? (Score:2, Insightful)
It's call the law of biogenesis.
Stop spending tax dollars trying to prove your Theory when there is already a scientific law disproving it.
Because, you know, a scientific "law" is the absolute truth........
Wikipedia happens to say that the law of biogenesis is "that modern organisms do not spontaneously arise in nature from non-life." Really, what makes you think that we are talking about modern organisms? This "law" is just meant to codify that the common wisdom of the day, that flies will comes from rotten meat, was incorrect.
Aside from a creationist perspective, you need some kind of abiogenic beginning, and this research helps us understand how this might take place.
Re:hypotheses (Score:2, Insightful)