Illustration of the two gigantic X-ray/gamma-ray bubbles (blue-violet) of the Milky Way (center)

1.0 Illustration of the two gigantic X-ray/gamma-ray bubbles (blue-violet) of the Milky Way (center) Nicolas Raymond https://www.boldfrontiers.com/ photo 1550 872 https://www.boldfrontiers.com/img/s/v-10/p1556734712-6.jpg