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NASA Finds New Way Earth May Have Received Elements Needed for Life - NASA Science
- NASA finds Earth likely acquired its life-essential elements mainly from the inner solar system, with Jupiter shaping the distribution.
- Researchers examined phosphorus-to-nitrogen ratios in iron meteorites and chondrites to trace early solar system material.
- Jupiter's growth is linked to limiting the outward flow of phosphorus and nitrogen, influencing inner-solar-system composition.
- Inner solar system planetesimals, related to iron meteorites or chondrites, best reproduce Earth’s current phosphorus-nitrogen signature.
- The study proposes a two-generation view of planetesimals, linking iron meteorites to the first and chondrites to the second.
- The inner solar system contributed the key elements needed for habitable world formation, according to geochemical models.
- The research reduces the need for outer solar system chondrite delivery to Earth for life-essential elements.
- The findings appear in Science Advances, supported by NASA researchers and institutions.
- The article emphasizes how early solar system dynamics shaped Earth’s chemical inventory.
- The research provides a context for how life-essential materials became available for early Earth.
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