A guide to 2021 night sky: 3 supermoons, a blue moon and 2 lunar eclipses Updated Jan 09, 2021; Posted Jan 09, 2021 Skywatchers can look forward to various special celestial events in 2021, including three supermoons, a blue moon, and two lunar eclipses. (Ashlee Espinal/The Jersey Journal)EJA Facebook Share STATEN ISLAND, N.Y. — The night sky will shine bright with a full moon every month in 2021 — and skywatchers can look forward to various special celestial events, including three supermoons, a blue moon, and two lunar eclipses. According to the Old Farmer’s Almanac and AccuWeather.com, there will be three supermoons — one on April 26 during the Full Pink Moon, May 26 during the Full Flower Moon and June 24 during the Full Strawberry Moon.