Direct answer
The short version
Use Mission Control to view open windows and the Spaces bar, choose a destination, or move windows among desktops. Use Spaces to maintain separate desktop contexts for stable projects or modes of work. Mission Control is the control surface; Spaces are the organized environments.
Key takeaways
- Mission Control temporarily presents open windows and the Spaces bar.
- Spaces separate windows into additional desktop contexts.
- Full-screen and Split View apps also participate in the Spaces model.
- Neither system replaces app-native tab, file, folder, or page navigation.
Separate the overview from the organized environment
Mission Control arranges open windows for visual selection and reveals Space thumbnails at the top of the screen. It is a way to inspect and manipulate the current desktop structure.
A Space is one of those desktop structures. While working in it, only its assigned windows are normally visible. Spaces are useful when a context remains stable long enough to justify a separate desktop.
- Find a visible window: Mission Control.
- Choose or create a desktop context: Spaces through Mission Control.
- Move a window to another desktop: Mission Control and Spaces bar.
- Switch a nearby Space: configured gesture or Control-arrow command.
- Find a hidden tab inside a window: app-specific search.
Avoid turning Spaces into another search problem
Use a small number of clear Space roles such as one long-lived project, one presentation context, or one personal boundary. Different wallpapers can make them easier to recognize.
Short detours and changing subprojects usually do not deserve their own Space. Normal window switching, search, and recent history add less maintenance.
Create a stable boundary
Use a Space only for windows that repeatedly belong together.
Use Mission Control to inspect
Review window placement and move only contexts with a durable role.
Delete expired Spaces
Reduce the structure when the project or boundary ends.
Add a return path across desktop boundaries
Spaces explain where windows are grouped, not the order in which locations were visited. An interruption may cross a browser, editor, terminal, and Slack window on several desktops.
ReturnFast can retrace supported recent contexts without requiring the user to remember their Space. macOS still controls desktop and window placement.
Use Spaces for durable organization, Mission Control for visual selection, and chronology for recent detours.
Further reading and product details
Frequently asked questions
Is Mission Control the same as Spaces?
No. Mission Control is the overview that displays windows and the Spaces bar. Spaces are separate desktop contexts.
Do I need Mission Control to use Spaces?
Mission Control is the primary visual interface for creating, viewing, rearranging, and deleting Spaces, though gestures and keyboard commands can switch among them.
Should every project have a Space?
Only stable, long-lived boundaries usually justify one. Short tasks are often easier with normal windows, search, and recent history.