Painting from Nasa.gov. Artist uncredited.
North American Rockwell pre-flight depiction of the Apollo 14 mission.
I think that was supposed to read “Norman Rockwell.” A high resolution version can be downloaded from N.A.S.A.’s Space Flight Gallery. No artist is credited. The Facebook page in the clickthrough link says it comes from RetroSpaceImages.com, but it doesn’t seem to be there anymore.