A year after the Christmas stamp from the US Post Office debuted, they did it again. In 1963, still no Jesus, no Mary, no Santa. Left, note that a few lights in the White House are on. Huge tree in the foreground, so there’s greenery, like the year before.
This depiction is fictional, but if true to life, the viewer is facing north. Not really a sunrise or sunset in the distance. Maybe the light of freedom. What do you think?
Catholic Sensibility 
Thank you for catching the wrong-sky-aspect. So common in illustrations. Mixing up placement of crescent/quarter moons with wrong twilight direction (and, if details of season are visible, height in sky) is one of the more common errors, though not found in this example.
Perhaps the glare of rockets, but the wrong color, I think.