Hubble Telescope Detects Wake of Betelgeuse’s Hidden Companion Star, Confirming Long-Held Theory

Jan 9, 2026 - 17:00
Hubble Telescope Detects Wake of Betelgeuse’s Hidden Companion Star, Confirming Long-Held Theory
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.