A space that contains no matter is called a vacuum. It is a region devoid of particles, atoms, or molecules.
matter
The big bang theory does not state that "the universe began with a gigantic explosion." The theory suggests that our universe originated from an infinitesimally small point called a singularity. Since all of space was all localized within this point, the rapid expansion of the universe isn't an explosion. An explosion occurs within space, but the expansion of space itself isn't an explosion. Quite simply, there isn't anything outside of space for the universe to explode into. Thus the "big bang" wasn't big, nor did it go bang. Around the time of the big bang (about 13.7 billion years ago), the universe was much hotter and expanding very rapidly (somewhat analogous to an explosion but by no means an actual explosion).
A space entirely devoid of matter is called a vacuum. It is a region where there is no physical substance present, including gas, liquid, or solid particles.
The area beyond space where no matter exists is often referred to as "void" or "vacuum." It is a hypothetical concept in physics used to describe a region devoid of matter and energy. This idea helps scientists understand the boundaries of the observable universe.
No. An explosion is an expansion of matter from a central point of high density to outer points of lower density. This is NOT what happened during the Big Bang, despite numerous popular presentations to that effect. The Big Bang was NOT an expansion of dense matter from a central point into empty space. It was an expansion of space itself.
He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".He announced the details of a plan for the expansion of Germany. It was called Lebensraum, meaning "living space".
theory of relativity
A material that takes up space is called matter. Matter is anything that has mass and occupies space.
Matter
Light is not the origin of the universe. The universe began with the Big Bang, a rapid expansion of space and time. Light is a form of electromagnetic radiation that was produced after the Big Bang as the universe cooled down and matter began to form.
A piece of matter moving through space is called an object or a particle.
The amount of matter in a given volume of space is called density.
There is no opposite of dark energy in the sense that there exists something that is the exact opposite of dark energy. Dark energy speeds the rate of expansion of space, even empty space, and gravity, mass, or matter causes the opposite in that it causes a decrease in the rate of expansion of space in areas that have matter.
That's why it's called space, because there is so little matter in it.
The expansion of the Universe should not be thought as if matter expands quickly in an existing space; it is space itself that is expanding. This is a confusing topic; read the Wikipedia article on "metric expansion of space" for a brief introduction.
That our Universe began with an explosion of matter, from a central point in space of high density to parts of space of low density. It was not an explosion at all, it was an expansion. And it wasn't of matter, it was of space itself.