Nebulas Surrounding Wolf Rayet Binary BAT99 49 . ... Illinois), ESO Explanation: How could two young stars power these colorful interstellar gas clouds? Although hidden by thick dust , the stars spew forceful ions and energetic radiation that cause the clouds to fragment and light up. ... Located in the Large Magellanic Cloud (LMC), the largest satellite galaxy to our own Milky Way Galaxy , one of the stars in the central binary is an enigmatic Wolf-Rayet star while the other is a massive O star . ...