UniverseEverything that exists, including planets, stars, galaxies, and all matter and energy
Definitions:
All matter and energy, including the earth, the galaxies, and the contents of intergalactic space, regarded as a whole.
NothingnessThe state or condition of having nothing
Definitions:
The absence or cessation of life or existence.
CosmologyThe science that deals with the nature of the Universe
Definitions:
The science of the origin and development of the universe.
ExistenceThe fact of living or having objective reality
Definitions:
The state or fact of living or being present.
QuantumThe smallest amount of something, especially energy
Definitions:
A discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.