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Regarding the origin of homochirality, the scientific community has proposed multiple hypotheses: the physical origin hypothesis (parity non-conservation caused by the weak nuclear force), the cosmic origin hypothesis (interstellar organic molecules carried in meteorites themselves have a chiral bias, such as L-amino acids being slightly more abundant than D-amino acids in the Murchison meteorite), and the spontaneous symmetry breaking hypothesis (random fluctuations in the primordial soup were locked in through a Soai-type amplification mechanism).
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10/12/2026
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UnverifiedIn the Murchison meteorite, scientists found that certain amino acids have a slight left-handed excess, which is regarded as one piece of evidence that the homochirality of life may originate from outer space or early Earth chemical processes.74% similarUnverified一项新研究揭示质子内部隐藏着此前未被充分理解的胶子结构63% similarUnverified费米悖论由物理学家恩里科·费米于1950年提出，核心问题是如果银河系存在大量潜在外星文明，为什么至今没有观测到它们的任何迹象59% similarUnverifiedThe Nobel Committee clarified that the Soai reaction is not itself the origin of chirality 4 billion years ago, but for the first time simulated in the laboratory how homochirality could possibly emerge spontaneously.59% similarUnverifiedAt the dawn of life on Earth, it may have been precisely some accidental chiral fluctuation that was captured and amplified by an autocatalytic mechanism, thereby laying the foundation for the uniform chirality of biomolecules today.56% similar
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