A new composite image of Chandra and Spitzer data shows G54.1+0.3, the dusty remains of a collapsed star. X-rays from Chandra reveal a wind of high-energy particles from the pulsar at the center of the image. The Spitzer data shows an infrared shell around the pulsar that is made of gas and dust that condensed from the supernova.
X-ray: NASA/CXC/SAO/T.Temim et al.; IR: NASA/JPL-Caltech