Here is part of the caption that came with this picture:
2001 Mars Odyssey's Thermal Emission Imaging System (THEMIS) took this portrait of the Earth and its companion Moon, using the infrared camera, one of two cameras in the instrument. It was taken at a distance of 3,563,735 kilometers (more than 2 million miles) on April 19, 2001 as the 2001 Mars Odyssey spacecraft left the Earth. From this distance and perspective the camera was able to acquire an image that directly shows the true distance from the Earth to the Moon.
So that is a true image picture, showing the actual distance from the Earth to the Moon. It blows my mind. Not only considering how small we are, but also considering how we could take that picture! If you would like to read more about it, click here. That is also the source of the original image.
To read a little more about the distance from the Earth to the moon, check out wikipedia's article.