Is the universe defined as everything that physically exist?
Is the Galaxy an interstellar cloud in outer space that is made up of dust?
Is a huge sphere of very hot, glowing gas
Star
Planets
Nova
Based on the video. What is defined as a objects drifting alone in the darkness of interstellar space?
Galaxy
Nebulae
It's a sudden brightness that appears on the surface of an existing white dwarf star in a binary system with another star
