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Planets
DiscoveriesArtificial greenhouse gases could signal alien activity on terraformed planets
If aliens altered a planet to make it warmer, we’d be able to detect it, a new study from UC Riverside concludes.
Joshua Shavit![](https://www.thebrighterside.news/uploads/2024/07/95ac29_7079d85da6c54e47a35c29410e631b43mv2.png?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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If aliens altered a planet to make it warmer, we’d be able to detect it, a new study from UC Riverside concludes.
Joshua Shavit