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arrow-up11arrow-down1external-linkWhen Was Earth Last Struck by a Supernova?www.scientificamerican.com☆ Yσɠƚԋσʂ ☆@lemmy.ml to Space, the final frontier@lemmy.mlEnglish · 5 months agomessage-square0fedilinkcross-posted to: hackernews@lemmy.smeargle.fans
