Hubble Confirms: A Mysterious Companion Discovered Around Betelgeuse.

According to ТСН: The Hubble Space Telescope has captured a gas trail belonging to a hidden companion star of the red supergiant Betelgeuse. This discovery confirms the hypothesis of a 'secret' companion around one of the brightest stars in the night sky.

Evidence in the Gas Trail

Astronomers have long tried to understand the strange behavior of Betelgeuse, particularly its unpredictable dimming cycles and changes in brightness. In 2025, a theory emerged that the cause might be another celestial object orbiting the giant. Now, with new data from Hubble and ground-based observatories, scientists have confirmed this—detecting a gas trail left by a companion named Sivarha.

"We have been discussing the likelihood of a companion around Betelgeuse for years, but without direct visual evidence, it remained just a theory," explains project leader Andrea Dupree from the Harvard-Smithsonian Center for Astrophysics.

How the 'Boat Effect' Works

To confirm the existence of Sivarha, scientists combined data from the Hubble orbital telescope and observatories in Arizona and the Canary Islands. They managed to detect a band of dense gas that is significantly different from the overall atmosphere of the supergiant.

The gas trail becomes noticeable once every six years when Sivarha aligns between Earth and Betelgeuse. The movement of the companion in the giant’s atmosphere can be compared to the wake of a boat on water. These 'waves' alter the spectrum of light detected by instruments.

Observing the interaction between the two stars provides scientists with the opportunity to better understand how Betelgeuse is losing its mass and what consequences this may have in the future. This is critically important for predicting the moment when the star will explode as a supernova.

Astronomers are already preparing for the next cycle of activity, expecting Sivarha to 'make an appearance' again in 2027.

Betelgeuse is one of the brightest and most famous stars in the night sky of Earth.

Previously it was reported when our Solar System will meet its end.

This discovery is highly significant for astronomy, as scientists have obtained new important data about one of the stars closest to us. Research on Betelgeuse will help better understand star evolution, their mass, and ultimate fate. In this context, observations of Sivarha may provide answers to many questions about the physics of stellar systems.