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How did the universe come into being? How much do humans know about the secrets of space? How did the concept of time emerge? Is time travel possible? What is a parallel universe? Why and how does the universe expand? What is the mystery of black holes? Could the world be swallowed by a black hole? Cansu Canan Özgen asks, Astronomer Prof. Dr. Ethem Derman and Physics Engineer Prof. Dr. Taşkın Tuna answer…