Space

Most of the stuff is in space. A very small part of the stuff is not in space, and that stuff belongs to the Earth.

Voyager 1 is in space.

Mars is in space.

The Earth itself is in space. But the stuff in, on, and very close to it are not in space.

You are (most likely) not in space, and are instead on the Earth.

Skydivers are not in space, but also not on the Earth. They are in the atmosphere, which belongs to the Earth.

The people in the ISS are in space.