"Captivating Kaleidoscope: The Enigmatic Blue Core of a Colorful Heart"

The Heart Nebula, also known as the Running Dog Nebula, is a colorful feature in the Cassiopeia constellation located about 7,500 light-years from Earth. Spanning an area larger than the Moon, the nebula's shape is influenced by supermassive stars in its core, with the blue colors resulting from ionized oxygen and sulfur. The image, captured by Paul Macklin, combines four separate mosaics and showcases the beauty of the universe.