When does a star shine like a whole galaxy?

At the final stage of its life, a star can have a luminosity of up to 10 ^ 10 luminosities of the Sun and even higher, that is, the luminosity of a star will be comparable to the luminosity of a galaxy. This happens during a supernova explosion.

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.