Hubble Telescope observations have revealed a dense gas wake in Betelgeuse’s atmosphere, confirming the presence of a hidden companion star named Siwarha. The discovery explains the red supergiant’s unusual brightness changes and offers new insight into how massive stars evolve and shed material before becoming supernovae.
Hubble Telescope Detects Wake of Betelgeuse’s Hidden Companion Star, Confirming Long-Held Theoryon January 9, 2026 at 3:58 pm
