了解宇宙是如何运行的第八季

Ep1 Asteroid Apocalypse: The New Threat

Ep2 NASA's Journey to Mars

Ep3 Hunt for Alien Evidence

Ep4 Death of the Last Stars

Ep5 Secrets of Time Travel

Ep6 When NASA Met Jupiter

Ep7 Edge of the Universe

Ep8 Monsters of the Milky Way

Ep9 Earth's Death Orbit

Ep10 Pluto's Strangest Secrets

Ep11 Mysteries of Alien Stars

Ep12 Asteroid Apocalypse

Ep13 Attack of the Asteroids

Ep14 Forces of the Unknown