![Webb NIRCam Cassiopeia A](https://petapixel.com/assets/uploads/2023/12/webb-nircam-cas-a-featured-300x157.jpg)
Supernova Remnant Cas A Shines and Confounds in Webb’s Newest Portrait
In April, the James Webb Space Telescope kick-started a new era of investigation into Cassiopeia A (Cas A), a prototypical supernova remnant that has been the subject of extensive study by numerous telescopes. Today, researchers shared another view of Cas A that has stunned astronomers.