The answer to that question will fill several college degrees and a few lifetimes of study. The short answer is "We're not sure yet."
At present, it would appear to be mostly "empty space". But is it really "empty", or is it filled with transient and short-lived "virtual particles"? Is matter really "solid", or is it just some sort of bound energy? Are we really here, or is everything including me, the state of California and all of WikiAnswers some sort of fantasy that I've dreamed up in my mind?
Perhaps you'll write the book about this.
Newton did not change the universe he described it mathematically.
Newton's ideas did not describe the universe as a series of concentric spheres. He is more famously known for his laws of motion and universal gravitation.
Isaac Newton is the English scientist who introduced the idea that the universe functions like a machine. This concept is often associated with his laws of motion and law of universal gravitation, which described the mechanical workings of the universe.
In 1924, Alexander Friedman noted that the equations of general relativity have only two solutions: an expanding universe or a contracting universe. Independently of that work, in 1927 Georges LeMaitre used those same equations to show that an expanding universe was the only reasonable description of our Universe. His ideas were later described as a "big bang" by those who opposed them.
A "no boundary" universe is a universe where the change in energy is positive or negative everywhere in the universe. Such a universe theory calls for everywhere expansion or everywhere contraction. The current central dogma in Astronomy is for such an expanding universe. The corrected Law of Gravity indicates that the universe is bounded and not expanding.
The Icelandic view of the universe described by Sturluson talks about the universe in which the giants and the gods battle.
Claudius Ptolemy was the ancient Greek astronomer who described a geocentric universe in his book "Almagest." He believed that the Earth was at the center of the universe, with the planets and stars orbiting around it.
Aristotle
The term 'super-universe' is basically a synonym for the multiverse, a hypothetically larger cosmos than our observable universe.
Science is a means of understanding the universe in which we live.
ptoelmy
False
That was the general belief held in antiquity.
Newton did not change the universe he described it mathematically.
Copernicus
Objects that move around other objects in the universe are said to be orbiting it, or in orbit.
The "big bang" better described as the rapid expansion of our Universe.