What is a more general concept – the Universe or the Metagalaxy? What structural elements are included in the Metagalaxy?

The metagalaxy is a part of the Universe accessible to observation. Metagalaxy is formed by a set of galaxies of all types, quasars, intergalactic environment.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.