James Webb telescope captures stunning image of youngest 'Green Monster' supernova in Milky Way.

The James Webb Space Telescope has captured the sharpest image yet of the debris field of Cassiopeia A, the remnants of a supernova that appeared in Earth's skies 340 years ago. The image reveals the leftovers of the supernova in brilliant green, pink, and orange, with each color representing a different wavelength of infrared light that would actually be invisible to the human eye. Scientists are using the images to dissect what happened to the ill-fated star before it died and hope to figure out where the universe's dust comes from.