Free Astronomy Magazine July-August 2023

THE FREE MULTIMEDIA MAGAZINE THAT KEEPS YOU UPDATED ON WHAT IS HAPPENING IN SPACE Bi-monthly magazine of scientific and technical information ✶ July-August 2023 ✶ ✶ How long until Betelgeuse explodes? BlackGEM telescopes begin hunt for gravitational-wave sources A possible preview of the ultimate fate of Earth • First direct image of a black hole expelling a powerful jet • Concentric gas and dust discs around the star TW Hydrae • A vast reservoir of hot gas in the Spiderweb protocluster • Distant gas clouds with leftovers of the first stars • VISTA reveals hidden views of vast stellar nurseries