了解宇宙是如何运行的/宇宙有道理第七季

S7, Ep18 Jan. 2019 Nightmares of Neutron StarsNeutron 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, Ep215 Jan. 2019 When Supernovas StrikeSupernovas are the violent...