Professor Moony is a character found in Dwarrows.
Artifacts the player finds are automatically added to his collection on a set of shelves near his chair. Speaking to Moony will allow the player to inspect these artifacts more closely, and Moony will describe the artifacts the player has found, providing some background information on the world.
Additionally, when sets of artifacts are complete, Moony will take Soul Quartz the player has collected to unlock Structures associated with that set of artifacts. The cost for unlocking a set of artifacts varies, and is displayed in the menu accessed by speaking to Moony.