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The possibility of fragments from a supernova core being ejected into interstellar space and observed as unusual objects
No, supernovas are not a realistic near‑term threat to human civilization: a deadly blast would have to occur unusually close to the Sun — on the order of a few tens of light‑years — a rarity on billi...
Three competing narratives have emerged to explain 3I/ATLAS’s oddities: an astrogeological origin as a lithified, stratified siliciclastic fragment from an exoplanetary sedimentary basin (the “sedimen...