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Nebulous explanation

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The planetary nebulae of gas and dust that are formed from red-giant stars are usually far from spherical in shape. Observations of the gas distribution in one red giant caught in the act of transition show why.

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Figure 1: The dying of the light.

NASA/ESA

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  1. National Radio Astronomy Observatory, 1003 Lopezville Road, PO Box 0, Socorro, 87801, New Mexico, USA

    Mark Claussen

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  1. Mark Claussen
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Correspondence to Mark Claussen.

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Claussen, M. Nebulous explanation. Nature 417, 798–799 (2002). https://doi.org/10.1038/417798a

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