Artists working with spacial concepts

If anyone is aware of any artists that are investigating space in interesting ways, I would love to hear about them.

This may involve artists who are:

Exploring space as navigatable, knowable and defined, i.e. with maps, trails, directional work, data mapping, survailance, reconstructions.

Space as uncertain or spaces dealing with dualities; reconfigured spaces, anxious spaces, looking at space from dimensions such as height, lightness/darkness, weight, spaces that change.

Durational space, space where events occur, spaces that operate as a site for action and reaction, spaces that deal with time, site specific spaces, performance.

Spaces as sights of memory, forgetting, monumental spaces, informational spaces, museums, offices.