- 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
- Rare Asteroid Sample Contaminated by Microorganisms Despite Scientists’ Best Efforts Gizmodo
- Rapid Colonization of a Space‐returned Ryugu Sample by Terrestrial Microorganisms Astrobiology News
- Bacteria found on a space rock turn out to be Earth-grown Nature.com