Hey there Cthulhu, up there on your frozen planet...
It's not official, but scientists at JPL and NASA have taken to calling one of the major features on the surface of Pluto . . . Cthulhu.
Starting at the white "heart" in the middle of the image, look down and to the left. The big black patch that starts near the bottom of the "heart" and wraps around Pluto's horizon to the left is "Cthulhu".
The article at the Huffington Post says this about it:
Since Pluto is named for the Roman god of the underworld, the names of its features are receiving monikers based on subterranean and suboceanic characters from fiction and mythology.
One of the dark regions near Pluto's south pole, initially called "The Whale" when first spotted from a more distant photo, has now been dubbed Cthulhu, one of the terrible "Great Old Ones" from the stories of H.P. Lovecraft [emphasis mine]. . . .
Other features have been named for Meng-p'o, the Buddhist goddess of forgetfulness and amnesia, and Balrog, a demon from JRR Tolkien's "Lord of the Rings" series. Two features, Vucub-Came and Hun-Came, are named for Mayan death gods. There's also Krun, named for a Mandaean lord of the underworld, and Ala, the Ibo ruler of the underworld.
As I said, it's not official . . . but it could be! The International Astronomical Union, which is responsible for the official naming of celestial objects, often gives naming priority to the discoverers of objects and features. And since the "discovering" scientists are already calling it Cthulhu, the IAU might just decide to go ahead and let that name stand.
Wouldn't that be just AWESOME?!?