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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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2023 GOES Away

A selection of several GOES ABI loops during 2022 showcased the diverse range of features observed, which included volcanic ash plumes, hurricanes, convection, fog, smoke, fires, dust and ice. It’s very hard to choose just one event from every month

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