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 6559 is a star-forming region located at a distance of about 5000 light-years from Earth, in the constellation of Sagittarius, showing both emission (red) and reflection (bluish) re...