Henize 70, a luminous superbubble of interstellar gas about 300 light-years in diameter and blown by winds from hot, massive stars and supernova explosions, is located in our neighborin...
NGC 6618, also known as the Omega Nebula or Messier 17 (M17), is a bright emission nebula approximately 5,000 light years from Earth, located in the constellation Sagittarius.