Pluto surface feature named 'Balrog'

[Lotrelf]

There was an article last year about how many scientific agencies (is that the proper word?) have been named after the things in Tolkien's world. Mountains on Titan are named after his characters. In fact one of the things (I don't remember exactly what) has been named after Sauron (having a full form and "Sauron" being its acronym). I must say Science becomes far more interesting with it!