↑ "Do you remember [...] The Lord of the Rings? [...] Well, Io is Mordor [...] There's a passage about "rivers of molten rock that wound their way ... until they cooled and lay like dragon-shapes vomited from the tortured earth." That's a perfect description: how did Tolkien know, a quarter of a century before anyone saw a picture of Io? Talk about Nature imitating Art." (อาร์เทอร์ ซี. คลาร์ก, 2010: Odyssey Two, บทที่ 16 'Private Line')
