Outer space has a very low density and pressure, and is the closest physical approximation of a perfect vacuum. But no vacuum is truly perfect, not even in interstellar space, where there are still a few hydrogen atoms per cubic meter.
[link to en.wikipedia.org (secure)]

Wiki and textbooks are full of BS. 

Space at sea level is 99.9% absolutely vacuum space. Air molecules only took 0.001 volume in the space around us. 

Gravity pulls all atoms in space into stars or planets.

Today's scientists have substituted mathematics for experiments, and they wander off through equation after equation and eventually build a structure which has no relation to reality. - Tesla

It is important to realize that in physics today, we have no knowledge of what energy is. We do not have a picture that energy comes in little blobs of a definite amount. It is not that way. -Feynman

All these fifty years of conscious brooding have brought me no nearer to the answer to the question, “What are light quanta?” Nowadays every Tom, Dick, and Harry thinks he knows it, but he is mistaken. - Einstein

Theoretical physics has been totally messed up since Einstein's relativity became mainstream.
Science became a religion; relativity, quantum mechanics, string theory, the standard model, the big bang theory, and cosmology are all based on imaginary made up word puzzles, impossible assumptions, misinterpretations, and false mathematical equations. No theory is based on fact and logic; no theory has a precise mechanism, or cause and effect explained.

There is no such thing in reality as a photon particle, quantum state, quantum energy, quantum field, quantum gravity, energy level, electron shell, electron-hole, electron cloud, wave-particle duality, wave function collapse, uncertainty principle, black hole, dark matter, dark energy, graviton, virtual particle, space-time, time dilation, gravitational lensing, quantum entanglement, or photoelectric effect. Space cannot tell matter how to move, and matter cannot tell space how to curve. There is no fabric of space-time, no ripples of gravity wave in the vacuum of space.

For example, time dilation is a misinterpretation of the timer’s reading charged at a different speed, gravity, or temperature. Put the same clocks in the Sun, Mars, Earth, and flying on a plane, and in a freezer for 24 hours, and every clock will have a different reading, but all spent the same 24 hours simultaneously

Gravitational lensing is a misinterpretation of the hot gas on the Sun or gas clouds in deep space deflected light, not gravity.

Quantum entanglement is a misinterpretation of Coulomb's force at work. All lines of sight charged particles are connected by F=Ke x PQ/R^2, and therefore, act as entangled.

A black hole is an imaginary stuff that has a huge mass that its gravity is so strong that even light cannot escape from it so it looks black. Based on Einstein’s theory that gravity can bend light and slow down the light speed. This is impossible. If gravity can slow down the light speed, Sunlight and flashlight will have different speeds. Every star light will have a different speed.

No theory, no scientist can explain how 1 electron and 1 proton can form into a stable hydrogen atom yet. Look at all the pictures of atoms, what do you see? Why scientists cannot build a working model of an atom?

The standard model is absolutely incorrect. Fusion is impossible and imaginary, and the stars are not fusion reactors. That's why scientists wasted 80 years and lots of money to research and develop fusion without any success. If stars are fusion reactors and constantly release energy, why the temperature of the universe is stable? Why the so-called cosmic microwave background is stable and detectible?

Scientists don't know exactly what energy is yet. How could E=MC^2 be correct?

Electromagnetism is the most accepted theory, but it is not correct at all. Look at antennas, the antenna is a terminal, how can current flow back and forth in an antenna to produce so-called EM waves? A continuous, unbroken path through which electrons can flow is a closed circuit. Maxwell was wrong. There is no transverse wave moving at light speed in the vacuum due to there being no force carrier in existence.

Energy is the motive force carried by moving matter (kinetic energy) and the alternating current carried in atoms (thermal energy). Energy must coexist with the matter. Therefore, there is no light wave, and no energy traveling in space at light speed. All theories based on light propagating in the vacuum of space are mistaken.

All energy came from atom formation. Oppositely charged particles attract each other and the same charged particles repel each other to form an atom, and the atom carries charged particles’ kinetic energy and is constantly vibrating
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The words of Tesla:
"Nature has stored up in the universe infinite energy. The eternal recipient and transmitter of this infinite energy is the ether. The recognition of the existence of ether, and of the functions it performs, is one of the most important results of modern scientific research. The mere abandoning of the idea of action at a distance, the assumption of a medium pervading all space and connecting all gross matter, has freed the minds of thinkers of an ever-present doubt, and, by opening a new horizon new and unforeseen possibilities has given fresh interest to phenomena with which we are familiar of old."

He missed the fact that universal repulsion force/levity is the instant eternal transmitter of this infinite energy, matters are the recipient. He misinterpreted levity as aether.