This is a 30-second exposure with the Full moon to my back shining on the falls.
YES, Those are stars in the night sky you see.
One of my All Time Favorite night time shots.

This shot was made at 13 minutes past midnight with the full moon behind me. I am amazed at the strong shadows and the amount of stars in the sky. I know the left shadow is deep and dark, however if I try to pull it out any more in PS, it does not look natural and really detracts from the image.