Yes the rock in the picture is floating, and there are trees in the background, and no this image has not been modified or cropped using Photoshop. No trick photography either.
Simply turn the picture upside down and you will see how impactful perspective is.
Ready for more to blow you away, :-). Here is a video doing the rounds on the grid. When your ego gets too big for your own good, close your eyes and remind yourself of the grandeur the cosmos is.