Knots and filaments of gas and dust spread across 10 light-years of space in this recent James Webb Space Telescope of Cassiopeia, the remnant of a massive star that exploded as a supernova thousands of years ago. The orange and red semicircle shows the glow of dust that's warmed as material from the explosion rams into it. Small knots of material closer to the center of the image represent gas and dust blasted out from the original star. [NASA/ESA/CSA/Danny Milisavljevic (Purdue), Tea Temim (Princeton), Ilse De Looze (UGent)]