(iii) Far - infrared spectroscopy of dust and ice features will address uncertainties in the mass and composition of dust in galaxies, and the contributions of supernovae to the interstellar dust budget will be quantified by photometry and monitoring of supernova remnants in nearby galaxies. (arxiv.org)
Specifically, the NuStar will map radioactive material in supernovae remnants in an attempt to study the origins of cosmic rays and extreme physics surrounding collapsed stars. (educationworld.com)
This image from the Chandra X-ray Observatory of supernova remnant Cassiopeia A shows rich blobs of iron (red regions, lower left) far from their origins at the core of the star. (sciencemag.org)