Twin earthquakes devastate Venezuela

Two powerful earthquakes that jolted Venezuela on Wednesday had killed over 160 people by early Thursday, with around 1,000 injured (00:51). The Annual Meeting of the New Champions or the Summer Davos has wrapped up, with business leaders hailing the "China Opportunity 2.0" idea (09:04). Scientists have discovered a rare marine blue hole in the South China Sea, which could help unlock new clues about the evolution of marine ecosystems (23:47).