A closer look at “Supernova Remnant Pa 30: A Celestial Time Capsule of Stellar Explosion”, exactly as the source publishes it. NASA's Astronomy Picture of the Day (APOD) for October 7, 2026, features Supernova Remnant Pa 30, a stunning celestial object that offers a window into the violent death of a star. Located in the constellation Cassiopeia, Pa 30 is the expanding debris cloud from a supernova observed by Chinese astronomers in 1181 AD, known as SN 1181. This remnant is notable for its rare, nearly perfect spherical structure and an extremely hot central white dwarf star, making it one of only a handful of such remnants identified in our galaxy.
The image, captured through advanced telescopes, reveals intricate filaments of glowing gas and dust racing outward at millions of kilometers per hour. The central star, a white dwarf, is the surviving core of the exploded star, and its intense heat energizes the surrounding material, causing it to emit light across multiple wavelengths. For the complete material, the listing points back to the source inside the network.