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Behold, the Mind-Blowing Bubbles of Betelgeuse


OverSword

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The twinkling stars aren’t what they seem. Their perceptible shimmer comes from our planet’s starlight-swirling atmosphere rather than anything intrinsic to those faraway suns, whose shine is relatively unwavering—at least, most of the time.

Betelgeuse, a well-studied red supergiant perched on the right shoulder of constellation Orion, has in recent years revealed itself as an exception to the rule. Most of its twinkling that’s noticeable to the naked eye is still caused by factors in our night sky. But some of the visual variation comes from the star itself, which is constantly bubbling with surface activity like a pot of hot soup simmering on a stove. For instance, in 2019 it dimmed dramatically after coughing an enormous hunk of material into space, sparking speculations that it might soon erupt into a spectacular supernova. Dubbed the Great Dimming, that cosmic burp gave Betelgeuse such a bump that, years later, the star’s surface is still wave-tossed and wobbling like a wonky washing machine stuck in a high-speed spin cycle. 

 

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The link includes a simulation video

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The mind blowing bubble of where? 

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1 hour ago, Sir Wearer of Hats said:

The mind blowing bubble of where? 

Oh no you don't :no:  I'm not falling for that trick again.

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1 hour ago, OverSword said:

Oh no you don't :no:  I'm not falling for that trick again.

What trick was that?

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That is really cool.   :yes:

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Betelgeuse Betelgeuse Betelgeuse !

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14 hours ago, Sir Wearer of Hats said:

What trick was that?

Oh I think you know sir.  I think you know.

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