"Esko Jorma Johannes Valtaoja (pronounced [\u02C8esko \u02C8\u028B\u0251lt\u0251\u02CCoj\u0251]; 1951, Kemi) is a Finnish professional astronomer and writer. Valtaoja works as a professor at the University of Turku where he studies quasars.In 2002 his book Kotona maailmankaikkeudessa (At Home in the Cosmos, 2001) won the Finlandia Prize for the best non-fiction work. After this he became a popular guest speaker at TV shows, science fiction conventions, popular science seminars etc."@en . "Finnish astronomer" . . "Valtaoja, Esko"@en . . . . . "1951Z"^^ . . . "1951-06-20Z"^^ . "Esko Valtaoja"@en . .