This week's sky highlights (May 9–18) include bright stars like Arcturus, Vega, and Capella, each over 60 times more luminous than the Sun. Observe Spica near the waxing Moon, which will be full on May 12. Discover ancient stars in Boötes and Libra, dating back over 12 billion years. Jupiter forms a rare alignment with Taurus's horn stars on May 15. Look for Vega and Lyra, the Great Diamond asterism, and asteroid Vesta. Venus and Saturn appear in the eastern dawn, with Mars visible in the southwest evening sky. Use sky maps for deeper celestial exploration. https://skyandtelescope.org/astronomy-news/observing-news/this-weeks-sky-at-a-glance-may-9-18/