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ring nebulasSpace
•82% Informative
The Southern Ring Nebula was imaged in December 2022 by the James Webb Space Telescope .
Scientists have found this nebula to exhibit a double-ring structure that evidences not one, but possibly three stars at its heart.
Only one of these stars, the most massive of the three , will have reached the end of its life.
The origin of the second ring, the team says, is less certain.
Some material must have been emitted as a roughly spherical or ellipsoidal envelope of material cast off by the red giant.
Other ring-shaped planetary nebulas have also been shown to have bi-lobed structures by which we are looking "down" the end of one lobe.
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