When entering queries previously in the Gmail search box, you could see applicable emails or Chat and space conversations by selecting the “Mail” or “Messages” buttons.
Starting today, Spaces in your domain with names or descriptions that match your query will appear when you click the newly added Spaces option. The directory will not only include spaces you’ve joined, but also discoverable spaces and restricted spaces you’ve been invited to, but have yet to join. Users also have an opportunity to preview the space contents before deciding to join by clicking on the “Preview” button next to each unjoined space.