LEO's

Is astrobiology serious science?

Nature Astronomy, Published online: 28 December 2023; doi:10.1038/s41550-023-02165-9 Is the scientific status of astrobiology undermined by the lack of evidence for alien life, the problematic influence of science fiction, or the use of ‘astrobiology’ as a buzzword for attracting funding?

LEO's

The oxygen bottleneck for technospheres

Nature Astronomy, Published online: 28 December 2023; doi:10.1038/s41550-023-02112-8 On Earth, technological advances required open-air combustion, which needs an oxygen partial pressure of about 18%. This threshold can help guide searches for detectable technospheres on other planets. ————— Free Secure Email

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