In a complete lookup of a patch of the Southern sky, not even a trace of alien technological know-how has been detected at small radio frequencies. Across at the very least 10 million stars that populate the Vela region – the deepest and widest survey for extraterrestrial intelligence nevertheless – […]
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Lacustrine ecosystems needed 10 million years to recover after end-permian mass extinction
Image: A-C: fish coprolites D and E: sliced photomicrographs of fish coprolite F and G: beetles H: fish I: ostracoda J: tadpole shrimp perspective more Credit history: NIGPAS The end-Permian mass extinction (EPME), close to 252 million many years ago (Ma), brought on a serious maritime and terrestrial ecosystem crisis, and […]