this post was submitted on 29 Nov 2024
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Summary

Earth-based bacteria rapidly colonized a Ryugu asteroid sample after it was returned to Earth in 2020 by Japan’s Hayabusa2 spacecraft.

Researchers confirmed the microbes were terrestrial, appearing after exposure to Earth’s atmosphere. Within two weeks, microbial populations on the sample grew significantly.

This highlights the resilience of Earth’s microorganisms and raises concerns about contamination of extraterrestrial materials and planetary environments during space missions.

The findings emphasize the need for strict planetary protection protocols to avoid misinterpreting contamination as evidence of alien life. The study was published in Meteoritics & Planetary Science.

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[–] Orbituary@lemmy.world 2 points 2 hours ago* (last edited 56 minutes ago) (1 children)

That's exactly my point, yet lemmy dogpiles are ridiculous. As I mentioned in my edit, there's no chain of custody on this sample. No evidence it was tested before exposure. Just "MIGHT BE ALIEN LIFE!"

[–] treefrog@lemm.ee 1 points 1 hour ago

I actually agree with you and upvoted your other comment. But I'm down voting this one too test your dogpile hypothesis.