Season 18 Episodes17
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66 million years ago an asteroid hit the planet. Now an expedition is underway to drill 1500m into the crater it created - the Chicxulub asteroid impact crater, aiming to unearthing the secrets that killed the dinosaurs.
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"The Day The Dinosaurs Died" is episode 4 of Catalyst season 18. It scored 7.5/10 from 8 votes. It aired on September 5, 2017.