Hubble Helps Demystify Dimming Supergiant Star Betelgeuse - ExtremeTech

With the aid of the Hubble Space Telescope, scientists from the Harvard-Smithsonian Center for Astrophysics have identified the cause of Betelgeuse's 2019 dimming: an unfathomably large Surface Mass Ejection (SME), which is something we've never observed befo…

The enormous star known as Betelgeuse has been a target of study since the early days of astronomy. As one of the brightest objects in the sky, it’s visible even without a telescope. But in 2019, it … [+2553 chars]

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