Where, then, is the source of all the energy represented by the 100,000 million stars in our galaxy, as well as the more than 1,000 million galaxies that make up the visible universe?
Kus on siis kogu selle energia allikas, mida sisaldavad sajad miljardid tähed meie galaktikas ja samuti ka rohkem kui miljard galaktikat, millest nähtav universum koosneb?