Did Scientists Find Life on K2-18b Or What? Here's The Most Likely Explanation
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Hello and welcome! My name is Anton and in this video, we will talk about updates from k2-18b -an unusual exoplanet where scientists claimed signs of extraterrestrial life
Links:
https://iopscience.iop.org/article/10.3847/2041-8213/ad2616
https://www.pnas.org/doi/10.1073/pnas.2117933119
https://aasnova.org/2024/03/11/k2-18b-may-not-be-habitable-after-all/
https://archive.md/wfaoS
https://arxiv.org/abs/2401.05864
https://arxiv.org/abs/2401.06608
Previous video: https://youtu.be/7OGUU-yVryk
Hycean world: https://youtu.be/b2O9irgjeXU
Mars methane: https://youtu.be/HJI06uS3OXE
#k218b #aliens #jwst
0:00 k2-18b discovery of signs of life
2:10 What kind of a planet is it?
3:35 Mars story
4:12 Methane production
5:00 DMS detection
5:45 WASP 80b methane
6:45 So what kind of a planet is it?
7:55 So it's probably this...
9:20 Best match
10:10 Still something missing
11:00 Conclusions
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Credit:
NASA, ESA, CSA, Joseph Olmsted (STScI) Science: Nikku Madhusudhan (IoA) -
NASA, CSA, ESA, J. Olmstead, N. Madhusudhan. - https://esawebb.org/images/weic2321b/
Pablo Carlos Budassi CC BY-SA 4.0 https://en.wikipedia.org/wiki/Hycean_planet#/media/File:Hyceanplanet.jpg
David A. Aguilar (CfA)
Mice of Mu CC BY-SA 4.0 https://en.wikipedia.org/wiki/Methane#/media/File:Origins_of_Biotic_and_Abiotic_Methane.jpg
Paul Scherer https://www.researchgate.net/figure/Morphology-of-acetotrophic-and-hydrogenotrophic-methanogens-as-seen-by-fluorescence_fig1_226840251
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