


NASA's OSIRIS-REx Mission Reveals Asteroid Bennu's Organic Building Blocks for Life
Recent analyses from Bennu samples reveal significant organic compounds, suggesting a wider distribution of life's essential ingredients in the early solar system.
Overview
NASA's OSIRIS-REx mission returned samples from asteroid Bennu, revealing a rich diversity of organic molecules, including amino acids and nucleobases, critical to life's building blocks. Findings published on January 29, 2025, suggest that amino acids and high levels of ammonia in the samples indicate a potential for life-assisting environments on Bennu's parent body. Additionally, traces of minerals linked to evaporated briny water hint at a complex history of prebiotic chemistry. These discoveries support the theory that asteroids delivered essential ingredients for life to Earth and raise questions about the conditions that prevented life from emerging on Bennu.
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