Researchers confirmed the presence of all five nucleobases in samples from asteroid Ryugu. This validates that these essential genetic components existed in pristine space material for 4.5 billion years. It follows the 2023 detection of uracil and aligns with recent findings from asteroid Bennu.
This suggests the raw ingredients for life are widespread across the solar system rather than unique to Earth. However, finding the pieces does not explain how they assembled into functioning biology. The specific chemical balance still depends heavily on the asteroid's local environment.
more: https://www.sciencedaily.com/releases/2026/11/261102075903.htm
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