Astronomers have captured the sharpest image yet of the debris field of the Milky Way's most recent known supernova.
Cassiopeia A, the remnants of a stellar explosion that appeared in Earth’s skies 340 years ago, sits 11,000 light-years away in the constellation Cassiopeia. A new image from the James Webb Space Telescope 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.
