Watch: Hunting secrets of asteroid that wiped out dinosaurs

Scientists are travelling back more than 60 million years in history to drill deep under the ocean floor in search of clues about the event that wiped out the dinosaurs, and nearly extinguished life on earth. Source: Smithsonian Channel

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A teenage refugee from Greece (1927-2020) becomes a relentless human rights lawyer in the crucible of a violent racist regime in South Africa. Video / South African Film Festival