re: The galaxy by a space probe
It's a gem of an image - very unusual for an 'interplanetary' ( ok, it's not going to a planet, but what the hell :) ) vehicle to take such a deep space image.
BUT :)
Two of the SECCHI instruments on each of the Stereo spacecraft take long exposure pictures of the 'gap' between the Sun and the Earth, and you can see traces of the Milky way in each one.