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Cecilia Scorza, EU-UNAWE Germany

The Butterfly Hunter

The Butterfly Hunter
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Astronomers have set out on a hunt, to catch as many planetary nebulae as they can. This picture shows four butterfly-shaped planetary nebulae that they've captured already.

Credit:

X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI

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