Story perspectives
Impact-Driven Water Flow on Asteroids Could Explain Earth's Water Supply
9/25/2025
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Story summary
- Researchers report fluid flow in Ryugu's parent body caused by an impact, melting buried ice and circulating water.
- This implies carbonaceous asteroids could have supplied Earth's water over a longer period than previously believed.
- The study notes phosphate veins help date fluid-flow ages, with plans for further analysis.
- Bennu samples may offer additional insights into early Solar System water activity.
