New research indicates that comets were likely not the source of life's building blocks on early Earth. This finding challenges previous theories that suggested extraterrestrial objects played a crucial role in seeding our planet with the necessary components for life to emerge. The study, published in Nature Astronomy, analyzed various celestial bodies and their potential to deliver organic molecules. AI
RANK_REASON The cluster reports on new scientific research published in a journal. [lever_c_demoted from research: ic=1 ai=0.1]
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