The star that should not exist.

https://www.almaobservatory.org/wp-content/uploads/2025/08/potw2531a-2-scaled.jpg
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This research was published on August 6, which is a very strange case, and is a huge bubble 1.4 light years in diameter that has been discovered surrounding a twin red supergiant star of Betelgeuse. The star should have died in a supernova explosion, but it didn't.

Astronomers describe it as a mystery, literally is the term they use, the discovery was made through a team of researchers from the Chalmers University of Technology in Gothenburg, Sweden, it is the star Stephenson 2 DFK 52 which is in a massive star cluster RSGC2, it is in our galaxy, the Milky Way, but quite far away, about 19,000 light years from us.

If it were as close to us as Betelheuse, which is about 150 light years away or so, we could see the bubble with a naked eye with those brilliant colors and it would contain about the size of a third of the width of the full moon in the sky, something that perhaps the humans of the future will see several miles of years after the explosion of Betelheuse, because the explosion of this star or what happened, because astronomers are not clear about it, happened about 4000 years ago, evidently, To those 4000 years you have to add the 19000 years of distance. We see what comes to us.

https://www.aanda.org/articles/aa/full_html/2025/08/aa55975-25/aa55975-25-fig1.jpg
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This bubble is made up of expanding gas and dust and is the largest structure of its kind ever seen in the Milky Way. This star was supposed to have exploded as a super nova 4,000 years ago and its core should have been compressed and transformed into either a neutron star or a black hole, but instead, the star continues to exist and it seems that all the star did was suddenly expel most of its outer layers, because that bubble has calculated to have a mass one and a half times the mass of the sun.

Why didn't it explode like a supernova? How is it possible that the star survived? Astronomers are considering two options, one that this giant star had a companion star that has not yet been discovered and that interacted with it, causing that massive ejection, that massive cutting of the entire crust of the star and avoiding a supernova explosion. By the way, a few days ago it was announced that Betelheuse had a companion star as well, if this is the case.

The second, the second possibility is that it is an unknown event that is observed for the first time, perhaps it is a special phase of the super red giants and that the supernova explosion occurs at any time or rather, the flash of the explosion reaches us at any time, although astronomers cannot determine if that is going to happen tomorrow in centuries or in a million years.

But the question is if Beteljeuse, which we have discovered has a star that is orbiting it, is a twin star, the same thing is going to happen to this one, instead of exploding it will make a hypermassive eruption of mass, a bubble will be created that in the end will end up illuminating the night sky as if it were a Christmas ball, and furthermore, the flash of a supernova lasts for a few weeks, at most, a few months, but this bubble can be seen for millennia, until it ends up dissipating for thousands and thousands of years.

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The images without reference were created with AI

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