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May 31, 2022, 3:10 pm129 pts
Ars Technica
Enlarge / These images, taken with the SPHERE instrument on ESO's Very Large Telescope, show the surface of the red supergiant star Betelgeuse during its unprecedented dimming. The image on the far left, taken in January 2019, shows the star at its normal brightness. The remaining images, from December 2019,…
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