James Webb Space Telescope’s ‘Cosmic Christmas Ornament’ takes its place on the White House Advent Calendar (photo, video)
And you thought it would take a while to clean up the wreckage of Christmas dinner. Newly revealed image of Cassiopeia A (Cas A) James Webb Space Telescope (JWST) shows bright supernova debris still sparkling like a cosmic Christmas ornament nearly 340 years after a star violently exploded to form it. image supernova Relics found… Read More »