Answer:
Universe, the whole cosmic system of matter and energy of which Earth, and therefore the human race, is a part. Humanity has traveled a long road since societies imagined Earth, the Sun, and the Moon as the main objects of creation, with the rest of the universe being formed almost as an afterthought.
The best-supported theory of our universe's origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient explosive force.
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WORDS RELATED TO THE UNIVERSE
celestial spaces.
cosmic space.
cosmos.
intercosmic space.
intergalactic space.
interplanetary space.
interstellar space.
metagalactic space.
