了解宇宙是如何运行的第七季

　　S7, Ep1
　　8 Jan. 2019 Nightmares of Neutron Stars
　　Neutron stars are strange and violent phenomena that defy the laws of physics, and new discoveries reveal that these bizarre nightmares are far more deadly than previously believed, with the power to destroy planets and even other stars.
　　
　　When Supernovas Strike S7, Ep2
　　15 Jan. 2019 When Supernovas Strike
　　Supernovas are the violent death of giant stars, and new discoveries reveal that these cataclysmic events create the elements that are essential to all life in the universe.
　　
　　The Interstellar Mysteries S7, Ep3
　　22 Jan. 2019 The Interstellar Mysteries
　　Discoveries about interstellar space, the space between the universe's stars, reveal that it's not empty and unremarkable as previously thought, but filled with weird objects and strange phenomena that might hold the darkest secrets of the cosmos.
　　
　　How Black Holes Made Us S7, Ep4
　　29 Jan. 2019 How Black Holes Made Us
　　Black holes are not the violent monsters people think they are, and new discoveries reveal that they might have been essential to creating stars, giving light, and building the universe itself.
　　
　　Secret World of Nebulas S7, Ep5
　　5 Feb. 2019 Secret World of Nebulas
　　Nebulas are the strange structures of cosmic gas and dust where stars are born and die, and new discoveries reveal the secrets of these mysterious places.
　　
　　Did the Big Bang Really Happen? S7, Ep6
　　12 Feb. 2019 Did the Big Bang Really Happen?
　　New discoveries are causing astronomers to question if the Big Bang really happened, and using the latest science, they investigate if it wasn't just the start of our universe but many mysterious multiverses.
　　
　　Battle of the Dark Universe. S7, Ep7
　　19 Feb. 2019 Battle of the Dark Universe.
　　Dark matter and dark energy are locked in an epic battle for control of the cosmos, and the winner will determine the fate of the universe. New discoveries might reveal which force will emerge victorious.
　　
　　Hunt for Alien Life S7, Ep8
　　26 Feb. 2019 Hunt for Alien Life
　　The latest discoveries suggest that we might be on the verge of discovering life beyond our planet, and scientists are investigating if earth's life began elsewhere in the universe, and whether we need to evolve to know for sure.
　　
　　Finding the New Earth S7, Ep9
　　5 Mar. 2019 Finding the New Earth
　　New discoveries have revealed thousands of exoplanets beyond the solar system. Some resemble earth enough that one could be a new home for humanity. Even with cutting-edge technology, finding the perfect one is the scientific challenge of the age.
　　
　　Cassini's Final Secrets S7, Ep10
　　12 Mar. 2019 Cassini's Final Secrets
　　For twenty years, NASA's Cassini spacecraft revealed the strange secrets of Saturn until it vaporized in its atmosphere in a blaze of glory. But today its legacy lives on, as fresh data from the probe helps scientists make brand-new discoveries.