Thin, red veins of energized gas mark the location of one of the larger supernova remnants in the Milky Way galaxy in this image from NASA’s Spitzer Space Telescope. A supernova “remnant” refers to the collective, leftover signs of an exploded star, or supernova. The red filaments in this image belong to a supernova […]
The Fading Ghost of a Long-Dead Star Read More »