2023 August 06 - SN 1006: A Supernova Ribbon from Hubble

In today's image, we see a part of the remnant of a supernova that was seen here on Earth over a thousand years ago. The material has been expanding outward all that time and still has enough energy to excite and ionize atoms in the interstellar material that it passes though.

Note: All commentary is created by me and is not necessarily approved or sanctioned by APOD or NASA.