Betelgeuse dimming, Think of it like a massive stellar sneeze

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Betelgeuse dimming, The dimming was caused by a dusty veil shading the star, which resulted from a drop in temperature on Betelgeuse's stellar surface. But is the explosion happening soon? Feb 15, 2026 · 👉Betelgeuse, one of the brightest stars we can see without a telescope, has shown noticeable dimming and slight changes in recent years. It's generally accepted that the dimming was caused by a dust cloud in the event that has now been dubbed 'The Great Dimming. In recent years, especially during its mysterious dimming in 2019–2020, the star has shown unusual behavior, leaving astronomers to wonder: Is a long-anticipated supernova about to erupt? Betelgeuse is a massive red supergiant star in Orion. 2 days ago · The dimming event was initially mysterious, but researchers now believe it resulted from Betelgeuse ejecting a massive amount of material from its surface. . Sep 1, 2024 · The dimming occurred toward the end of 2019 and then returned to normal in the first half of 2020. Think of it like a massive stellar sneeze. 1 day ago · Betelgeuse, a massive red supergiant located about 700 light-years away, has long intrigued scientists with its irregular dimming and instability. Its unusual dimming sparked global curiosity. This material cooled and condensed into dust clouds that temporarily blocked much of the star’s light from reaching Earth. Jan 12, 2026 · Betelgeuse's companion star is causing the red giant's periodic dimming, as it orbits and leaves a dusty trail in its wake. 4 days ago · Betelgeuse is 10–20 times more massive than the Sun, burning through its fuel at a furious pace. Aug 13, 2020 · Observations by NASA's Hubble Space Telescope are showing that the unexpected dimming of the supergiant star Betelgeuse was most likely caused by an immense amount of hot material ejected into space, forming a dust cloud that blocked starlight coming from Betelgeuse's surface. Aug 25, 2022 · This comparison image shows dramatic changes as Betelgeuse underwent unprecedented dimming. ' Jan 6, 2026 · Astronomers may have finally solved one of the weirdest mysteries of our night sky: why Betelgeuse, a massive star in the constellation Orion, seems to fade and brighten as if it were operated by Jun 16, 2021 · Now, in a new paper published today in Nature, an international team of astronomers reveal two never-before-seen images of the mysterious darkening —and an explanation. Scientists believe it could explode as a supernova. If that happens, the blast would be so powerful that it might be visible from Earth even during the daytime. In this video, we break down the latest JWST new discovery, examining stunning Webb telescope images and analyzing what they reveal about the mysterious Betelgeuse dimming event. The idea is both Betelgeuse is a semiregular variable star; its brightness fluctuates over months to years. Its impending supernova will release unimaginable energy, briefly outshining all stars in the night sky and rivaling the brightness of the Moon. During 2019–2020, it experienced a widely reported dimming event—nicknamed the “Great Dimming”—which studies have linked to factors such as surface convection and ejected dust clouds along our line of sight. This article synthesizes what astronomers have learned about Betelgeuse’s position and cultural significance, its physical properties and variability, the mechanisms behind the Great Dimming, and what the star’s future may hold. The observations, taken with the SPHERE instrument on ESO’s Very Large Telescope in January and December 2019, reveal that the bottom half of the star had dimmed. Some astronomers think these shifts could mean the star is approaching the end of its life in a spectacular supernova explosion.

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