Why is space frictionless?

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Why is space frictionless?

In: Physics

Friction is the resistance against movement of objects relative to one another.

As there’s very little actual matter in space, it would have (almost) no friction.

Because there are virtually no particles to drag on. In a planet’s atmosphere, even though you can’t see them in the air, there are tons and tons and tons of atoms and molecules and matter flying around that mean you have to use force of some kind to move them it.

In space, you don’t have that. It’s just nothingness, for the most part.

Friction is caused by matter coming into contact with other matter. Space is a void with no matter, therefore, no friction.