Liquid Water Once Flowed on Asteroid Ryugu’s Parent Body, Scientists Say

Sep 22, 2025 - 11:00
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Liquid Water Once Flowed on Asteroid Ryugu’s Parent Body, Scientists Say
This image of the asteroid Ryugu was captured by the Optical Navigation Camera - Telescopic (ONC-T) on JAXA’s Hayabusa-2 spacecraft on June 26, 2018, from a distance of 13.7 miles (22 km). Image credit: JAXA / University of Tokyo / Kochi University / Rikkyo University / Nagoya University / Chiba Institute of Technology / Meiji University / Aizu University / AIST.

This water flow occurred on an ancient asteroid more than one billion years after its formation and was probably triggered by an impact that generated heat for ice melting and opened rock fractures for water migration, according to an analysis of material returned by JAXA’s Hayabusa-2 spacecraft.

The post Liquid Water Once Flowed on Asteroid Ryugu’s Parent Body, Scientists Say appeared first on Sci.News: Breaking Science News.

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