Japan's priceless asteroid Ryugu sample got 'rapidly colonized' by Earth bacteria - Space.com
- Japan's priceless asteroid Ryugu sample got 'rapidly colonized' by Earth bacteria Space.com
- Samples of 'alien' asteroid Ryugu are crawling with life — from Earth Livescience.com
- Ryugu asteroid sample rapidly colonized by terrestrial life despite strict contamination control Phys.org
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