S6, Ep1 　　4 Feb. 2018 Are black holes real 　　Various eminent scientists explain the current knowledge of Black Holes and try to answer the question, do they really exist? The two great theories of Einstein's General Relativity and Quantum Mechanics don't work together to explain Black Holes which is a big problem. Other theoretical constructs such as Gravastars and Planck stars have been postulated but proving their existence is just as difficult as that of Black Holes. So where next? 　　 　　Twin Suns: The Alien Mysteries S6, Ep2 　　16 Jan. 2018 Twin Suns: The Alien Mysteries 　　Planets that orbit two suns instead of one might be deadly hell worlds, but new discoveries reveal that sci-fi star systems with binary stars might be optimal places for alien life. 　　 　　Dark History of the Solar System S6, Ep3 　　23 Jan. 2018 Dark History of the Solar System 　　Our solar system hides a dark and violent past, and new discoveries reveal that Earth and the planets were formed from the destruction of alien worlds that came before us. 　　 　　Death of the Milky Way S6, Ep4 　　30 Jan. 2018 Death of the Milky Way 　　The Milky Way is dying, and using the latest science and discoveries, experts are investigating what's killing it. 　　 　　Uranus & Neptune: Rise of the Ice Giants S6, Ep5 　　6 Feb. 2018 Uranus & Neptune: Rise of the Ice Giants 　　Uranus and Neptune are mysterious, icy worlds at the edge of our solar system, and new discoveries reveal that these strange planets may have helped start life on Earth. 　　 　　Secret History of Mercury S6, Ep6 　　13 Feb. 2018 Secret History of Mercury 　　Mercury has a dangerous secret that may one day threaten life on Earth. 　　 　　The Quasar Enigma S6, Ep7 　　20 Feb. 2018 The Quasar Enigma 　　Quasars are the brightest and most powerful objects in our universe, and though they have shaped the cosmos, they might ultimately destroy everything that exists. 　　 　　Strange Lives of Dwarf Planets S6, Ep8 　　27 Feb. 2018 Strange Lives of Dwarf Planets 　　New discoveries reveal the secrets of hundreds of strange, tiny worlds called dwarf planets. 　　 　　War on Asteroids S6, Ep9 　　6 Mar. 2018 War on Asteroids 　　Scientists discuss various types of asteroids, previous collisions between asteroids and Earth, and various technologies that may be employed to stop future collisions. Also discussed are ways in which nature can prevent or lessen the impact of collisions. 　　 　　Mystery of Spacetime S6, Ep10 　　13 Mar. 2018 Mystery of Spacetime 　　Spacetime is the secret structure that controls our universe, time, light, and energy.