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Hollow spheres found in a primordial meteorite could yield clues to the origin of life on Earth.
Scientists say that "bubbles" like those in the Tagish Lake meteorite may have helped along chemical processes important for the emergence of life.
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Mike Zolensky, a Nasa mineralogist, commented: "If, as we suspect, this type of meteorite has been falling on to Earth throughout its entire history, then the Earth was seeded with these organic globules at the same time life was first forming here."
Co-author Keiko Nakamura-Messenger of JSC told BBC News: "We reported only 26 globules in this paper, because they are small and hard to analyse. But we have seen hundreds in a small area. We can estimate that there are billions of them in this meteorite."
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http://news.bbc.co.uk/2/hi/science/nature/6197228.stmThe theories of Earth having been seeded fascinate me because of the implications of a larger galactic ecology of sorts.