So, the question I ask is simple : " Is a screen necessary to view a real image?" For example, when I view my image at the 'concave mirror' side of a spoon, a real image is visible. Now, according to my book the image location should be between Centre and Focus. So, is the image actually kinda floating in air before spoon. If that is the case, why can't I see this air-suspended image from somewhere else. Can the images float like this in air? Or is it the air particles that become the screen in this case? Will this floating image be visible in a vacuum also? Please explain as well. Thanks a lot in advance.