Betelgeuse’s Atmosphere is Back to Normal after Great Dimming Event, New Radio Observations Show

Oct 28, 2026 - 14:00
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Betelgeuse’s Atmosphere is Back to Normal after Great Dimming Event, New Radio Observations Show
This artist’s illustration shows the smaller, hotter companion star Siwarha creating a wake-like disruption in Betelgeuse’s outer atmosphere as it orbits directly through it. Image credit: NSF / AUI / NRAO / M. Weiss.

New radio observations with NSF’s Karl G. Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) show the red supergiant star’s outer atmosphere has rebounded and hint that its recently identified companion star is reshaping it.

The post Betelgeuse’s Atmosphere is Back to Normal after Great Dimming Event, New Radio Observations Show appeared first on Sci.News: Breaking Science News.

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