sure.
Deep in space in Zero Star of Sagittarius resides a great star, the most powerful star in the universe - the galaxy cauldron. From there everything is made and everything ends. Life comes from this sacred land, being born as small stars to eventually grow into planets and a guardian to protect that planet.
Sailor Moon, Mercury, Venus, Pluto, etc, they were all born there. One star did not fully grow and stayed in the Cauldron for many years. That star was Chaos. She had almost complete control of the cauldron and was the reason Galaxia joined forces with her in the first place. Metallia, Death Phantom, Nehellenia all came from this same place as well.
Galaxia said that the cauldron was "the holy land of the stars, The Galaxy Cauldron. Strong stars and weak stars. Trash and sailor soldiers. This is the place where all the stars throughout the galaxy are born."
The Cauldron looks sort of like bubbling broke of energy and resides just below a cliff. The place is said to be that where dreams and possibilities are made, because that is where life comes. Sailor Soldiers who die can be reborn there or choose to stay in their purest forms. It is the ultimate