Nothing: a vacuum is the lack of matter.
In air, light reflects off gas molecules and hence, "fills more space".
other organs of the body get into that space
There is nothing that fills the space between neutrons and electrons. There may be a couple of other particles, but they do not come close to filling the space.
Space is a vacuum. Sound cannot travel in vacuum
Yes, gas can exist in space. The interstellar medium, which fills the vast majority of space, consists of gas and dust particles. Stars are also made up of gases like hydrogen and helium. However, since space is a vacuum, these gas particles are very spread out compared to the atmosphere on Earth.
Examples of vacuums include the vacuum inside a sealed jar, the vacuum of outer space, and the vacuum inside a vacuum cleaner.
Not all occupies space, because air does not take space.
The term for the empty space where no air exists is vacuum. A vacuum is a space devoid of matter, including air. Vacuum is commonly used in scientific research and technology applications, such as in vacuum chambers or vacuum pumps.
That is called the volume.
Gas diffuses in space.
The space vacuum cleaner works by using suction to collect debris and dust in the vacuum of space. It operates similarly to a regular vacuum cleaner, but is designed to function in the unique conditions of space, where there is no air to create traditional suction. Instead, the vacuum cleaner uses specialized technology to create a vacuum and collect debris and dust particles.
well space is like a vacuum you cant escape it and sound wave do not travel in space but space isn't literally a vacuum so they move by rockets and the gravity of earth