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  <lastmod>2026-07-20T16:38:48Z</lastmod>
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   <news:title>Projections of Earth&amp;#039;s Technosphere: Civilization Collapse-Recovery Dynamics and Detectability</news:title>
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  <loc>https://astrobiology.com/2026/07/20/researchers-identify-class-of-oddball-meteorite-that-killed-earths-dinosaurs/</loc>
  <lastmod>2026-07-20T16:25:40Z</lastmod>
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   <news:title>Mineral Biosignature Identification From Raman Spectroscopy Using Machine Learning</news:title>
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  <lastmod>2026-07-20T16:15:55Z</lastmod>
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  <lastmod>2026-07-20T17:00:07Z</lastmod>
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