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Webb Pinpoints Butterfly Nebula's Hidden Star, Reveals Planet-Building Dust

Researchers using the James Webb Space Telescope identified nearly 200 spectral lines and found evidence of polycyclic aromatic hydrocarbons forming in an oxygen-rich planetary nebula.

  • On Aug. 27, 2025, James Webb Space Telescope images zoomed into the Butterfly Nebula's center and dusty torus, pinpointing its central star heating a dust cloud visible to MIRI.
  • Using James Webb Space Telescope, Dr Mikako Matsuura said, 'For years, scientists have debated how cosmic dust forms in space', to clarify dust formation in stellar remnants.
  • Detailed maps revealed nearly 200 spectral lines, crystalline silicates, and dust grains of one millionth of a meter, as MIRI spectroscopy found in the Butterfly Nebula.
  • Mikako Matsuura's team suggested dying stars release mineral and organic compounds that may seed rocky planets and prebiotic chemistry.
  • Webb, a NASA/ESA/CSA mission, captured observations in September 2023 using four spectroscopic channels, revealing planetary nebulae last about 20,000 years and guiding future planet-seeding chemistry studies.
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The Times broke the news in United Kingdom on Wednesday, August 27, 2025.
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