Before revision: In science fiction, a fictional world may be a remote alien planet or galaxy with little apparent relationship to the real world (as in Star Wars); in fantasy it may be a greatly fictionalized or invented version of Earth's distant past or future (as in The Lord of the Rings).
After revision: In science fiction, a fictional universe may be a remote alien planet or galaxy with little apparent relationship to the real world (as in Star Wars); in fantasy it may be a greatly fictionalized or invented version of Earth's distant past or future (as in The Lord of the Rings).