Cosmos:elementary | Can planets be sentient? @Cosmos_elementary | Uploaded November 2023 | Updated October 2024, 30 minutes ago.
What is planetary intelligence? Let’s talk about what it is, whether it could help us to search for extraterrestrial intelligence.

00:00 - Intro
01:45 - Biosignatures
15:08 - Tehcnosignatures
18:56 - Planetary intelligence

Sources:
Biosignatures
liebertpub.com/doi/10.1089/ast.2017.1729
space.com/39476-alien-life-biosignature-gases-oxygen.html
arxiv.org/pdf/1905.07070v1.pdf
planetary.org/articles/how-spectroscopy-helps-search-for-alien-life
Tehcnosignatures
phys.org/news/2022-02-webb-telescope-civilizations-air-pollution.html
arxiv.org/pdf/2202.05858.pdf
astrobiology.nasa.gov/news/technosignatures-and-the-search-for-extraterrestrial-intelligence
Planetary intelligence
cambridge.org/core/journals/international-journal-of-astrobiology/article/intelligence-as-a-planetary-scale-process/5077C784D7FAC55F96072F7A7772C5E5
space.com/search-for-planetary-intelligence-astrobiology
phys.org/news/2022-02-planet-mind.html
sci-news.com/space/planetary-intelligence-10576.html