NASA Earth Observatory images by Jesse Allen, using Landsat data from the U.S. Geological Survey. (Landsat 8)
Description of this image on the NASA Earth Observatory page:
"Satellites offer an even loftier view. On April 20, 2016, the Operational Land Imager (OLI) on Landsat 8 captured this view of the water gap from an altitude of about 700 kilometers (430 miles). While spring warming has cast the valleys in green, the cooler tops of the ridges remained brown."
Note: I (P999) modified this image by adding three labels to it,
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]