Since the moon always has the same side facing Earth, shouldn't the Earth always be in the same position in the sky when observing from the moon? There's a photo taken by the Apollo 8 crew in a book I have that claims the Earth is rising above the horizon of the moon. The book is "The Rough Guide to the Universe" by John Scalzi in case you have it and want to look it up (page 197). It struck me as wrong. Let me know what you think.