A dusty veil shading Betelgeuse during its Great Dimming.

@article{Montargs2021ADV,
  title={A dusty veil shading Betelgeuse during its Great Dimming.},
  author={Miguel Montarg{\`e}s and E. Cannon and E. Lagadec and Alexander de Koter and P Kervella and Joel Sanchez-Bermudez and C Paladini and Faustine Cantalloube and Leen Decin and Peter Scicluna and Kateryna Kravchenko and Andrea K. Dupree and Susan E. Ridgway and Markus Wittkowski and N. Anugu and Ryan P. Norris and Gioia Rau and Guy Perrin and Andrea Chiavassa and Stefan Kraus and John D. Monnier and F. Millour and Jean-Baptiste Le Bouquin and X. Haubois and Beatriz Lopez and P. Stee and William C. Danchi},
  journal={Nature},
  year={2021},
  volume={594 7863},
  pages={
          365-368
        }
}
Red supergiants are the most common final evolutionary stage of stars that have initial masses between 8 and 35 times that of the Sun1. During this stage, which lasts roughly 100,000 years1, red supergiants experience substantial mass loss. However, the mechanism for this mass loss is unknown2. Mass loss may affect the evolutionary path, collapse and future supernova light curve3 of a red supergiant, and its ultimate fate as either a neutron star or a black hole4. From November 2019 to March… 
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Betelgeuse is the nearest red supergiant, one of the brightest stars in our sky, and statistically speaking it would be expected to be ”typical”. Yet it exhibits many features that seem ”curious”, to
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Atmosphere of Betelgeuse before and during the Great Dimming event revealed by tomography
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