The Deep Space Mysteries 2021 calendar features 12 breathtaking images of stars, planets, galaxies, and other deep space wonders. Each image is accompanied by an informative, educational essay about the celestial object shown in the image. A perennial favorite among astronomy and space enthusiasts, the calendar is also ideal for budding astronomers and anyone interested in space science. Space and astronomy themes are popular calendar titles. Deep Space Mysteries 2021 is an exclusive calendar from the editors of Astronomy magazine, the most popular magazine of its kind in the world. Contributor/Author Bio The editors of Astronomy magazine offer stunning images of deep sky wonders and accompanying essays. Astronomy is published in Waukesha, Wisconsin.