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Stellar dust-buster mystifies scientists

An artist's rendering of dust cloud

Mystery surrounds the disappearance of a planet forming dust ring Source: Gemini Observatory/AURA artwork by Lynette Cook.

Astronomers are baffled by the sudden disappearance of a disc around a distant star that was in the process of forming new planets. Also; discovery of a dark matter filament linking galaxy clusters, and the most distant galaxy ever seen.

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Subjects: planets-and-asteroids, spacecraft, microbiology, physics, stars, dna