S1·E2 – Asteroid Armageddon
2013-10-16 • 45 min
Investigating a giant asteroid that may have been responsible for killing off the dinosaurs. Also: a NASA super gun; an underground river in Mexico.
2013-10-16 • 45 min
Investigating a giant asteroid that may have been responsible for killing off the dinosaurs. Also: a NASA super gun; an underground river in Mexico.
