Betelgeuse is a red supergiant star in the equatorial constellation of Orion. It is usually the tenth-brightest star in the night sky and, after Rigel, the second brightest in its constellation.

6 days ago · Betelgeuse's companion star is causing the red giant's periodic dimming, as it orbits and leaves a dusty trail in its wake.

Oct 7, 2025 · Betelgeuse is the nearest potential supernova, but how far away is it? Distance estimates vary, but it’s probably within 1,000 light-years … a hop and a skip in galactic terms.

Jun 1, 2023 · One of the brightest stars in the night sky has been getting oddly brighter, prompting speculations that it might soon explode in a supernova. Can we really expect that celestial spectacle?

May 31, 2025 · Astronomers worldwide are raising the alarm as fresh information from NASA's James Webb Space Telescope (JWST) indicates that Betelgeuse — the enormous red supergiant star in …

Mar 17, 2025 · Estimates based on the mass of Betelgeuse, its rotation rate, the group of stars it was born with, and the amount of metals we can measure in the upper layers of its atmosphere, all …

6 days ago · A supernova is the catastrophic, explosive death of a massive star, an event that briefly outshines an entire galaxy. Since Betelgeuse is nearing the end of its life, its potential explosion …

Jul 23, 2025 · While this is an exciting breakthrough for astronomers, it’s a bit disappointing for skywatchers — it confirms that Betelgeuse is younger than previously thought and won’t go …

Sep 29, 2025 · For nearly a century, scientists thought the red supergiant star Betelgeuse might be orbited by a smaller gas body. Their hypothesis was finally confirmed in July 2025, when NASA …

Jan 5, 2026 · New Hubble and ground-based observations allowed astronomers to track the influence of a recently discovered companion star around Betelgeuse.