Everyone meet WR 124 (and companion Nebula M1-67), my favorite star.
Wolf-Rayet stars such as this one have at least 20 times the mass of the sun and emit large amounts of gas at high speeds which generates the nebula that surrounds it.
They lose the equivalent mass of the Earth every year and will eventually turn into Supernovas or Hypernovae to finally become massive black holes.
COOLEST.