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by Edited by Mario Livio , Keith Noll , Massimo Stiavelli
by Guy Consolmagno , Dan M. Davis
by Edited by Mario Livio , Stefano Casertano
by The Editors of Sky & Telescope
by Sneider, Cary
by Meng, Zemin; Yang, Zhengyong
by Stephen Eales
by Kerss, Tom