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Despite their name, planetary nebulae have nothing to do with planets.
But a recent study led by researchers at the Institute of Astrophysics of Andalusia (IAACSIC) has revealed the fact that explosive phenomena also intervene in the formation of planetary nebulae, Zee news reported.
Like Spring flowers, planetary nebulae blossom and go.
A few planetary nebulae have been reported to have a variable brightness [16].
For instance acetylene, detected around red giants, served as a building block for molecules such as benzene and more complicated aromatic hydrocarbons present in planetary nebulae.
The outer layers of these stars expand into thin gaseous shells called planetary nebulae, such as the Cat's Eye.
These planetary nebulae are a warning that we have 5 billion years to get out of town," quipped Howard Bond, a Hubble astronomer.
An Abundance Gradient for Gaseous Magnesium in the Planetary Nebulae NGC 7027, Astron.
His theory on the origin of planetary nebulae has influenced our understanding of the death of Sun-like stars.
Planetary nebulae are shells of gas ejected by stars.
Many planetary nebulae have this same double-lobe appearance, which is the result of streams of high-speed gas being jettisoned from the star.
Planetary nebulae, contrary to their name, are actually the end-of-life phases of stars like our Sun that have sloughed off their outer layers.

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