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Q&A Catastrophic event from space/earth that humanity are able to see it coming

Assuming current technology, is there any catastrophic event from space/earth that humanity are able to see/detect/calculated it coming. (Would prefer a space event but earth ones are welcomed) Th...

8 answers  ·  posted 9y ago by Mono‭  ·  last activity 9y ago by Mono‭

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