Betelgeuse goes through periods of brightening and dimming, usually in a 400-day cycle. But in 2019, the star experienced a ...

That dust is what blocked some of Betelgeuse's luminosity, causing the GDE. Previous research revealed this three-step process behind the GDE. The authors of the new research article set out to ...

New ground- and space-based infrared observations are giving astronomers a better handle on the true populations of red ...