Cassiopeia A Supernova Remnant - NASA’s Stunning X-ray and Infrared Composite #3248669 (License: Personal Use)

Cassiopeia A is the youngest known supernova remnant in the Milky Way, located about 11,000 light-years away in the constellation Cassiopeia. The intricate filaments trace shock-heated gas and dust, enriched with heavy elements forged in the star’s final moments. Data from Chandra X-ray Observatory, Spitzer Space Telescope, and Hubble combine to highlight different physical processes across the remnant.

Used in astronomy education, science journalism, and space agency outreach pages; targets users seeking high-resolution cosmic imagery, supernova physics, or NASA mission highlights.