A nebula from Latin: "cloud"is an interstellar cloud of dust, hydrogen, helium and other ionized gases. Originally, nebula was a name for any diffuse astronomical object, including galaxies beyond the Milky Way.
NGC 474 is an elliptical galaxy in the constellation Pisces. This large galaxy is known to possess tidal tails, although their origins remain unknown. These tidal tails may be related to debris left over from absorbing numerous small galaxies in the past.
Human Body Ingredients via imaginaryfoundation: 'The average human has approximately 100 trillion cells and each cell is made of approximately 100 trillion atoms, each of which were originally created in the center of a star.