Hubble shares the image of a mysterious superbubble in the N44 nebula
NASA/ESA Hubble Space Telescope recently shared the image of one of the most distinctive features of the N44 nebula. That feature is nothing but the dark, starry gap called a superbubble in the N44 nebula. N44 is an emission nebula consisting of glowing hydrogen gas, dark lanes of dust, massive stars, and many populations of…