There is an 11 second video across a few weeks embedded. From the caption: "This time-lapse video using data from NASA’s James Webb Space Telescope highlights

There is an 11 second video across a few weeks embedded. From the caption: "This time-lapse video using data from NASA’s James Webb Space Telescope highlights the evolution of one light echo in the vicinity of the supernova remnant Cassiopeia A. A light echo is created when a star explodes or erupts, flashing light into surrounding clumps of interstellar dust and causing them to shine in an ever-expanding pattern."