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US Secretary of State Rex Tillerson firmly denied Wednesday that he had fallen out with Donald Trump and vowed to remain in post to pursue the president's "America First" agenda. Trump and Tillerson's relationship has been the subject of media speculation for months, and on Wednesday

Tokyo Olympic organisers said Wednesday that prolonged summer rain had temporarily brought high levels of bacteria to a venue intended for triathlon and marathon swimming at the 2020 Games. The admission came during a visit by International Olympic Committee officials to assess Tokyo's readiness

A groundbreaking technique awarded the Nobel Chemistry Prize on Wednesday has allowed scientists, using unearthly cold temperatures, to produce exquisitely detailed images of the tiniest structures in cells. What is cryo-electron microscopy? - The technique - Jokingly called the "cool method"

Catalan leaders were preparing Wednesday to declare independence after a violence-hit referendum, defying a warning from the country's king that national stability was in peril. As the European Union urged dialogue to ease the standoff between separatists in the northeastern region and Madrid, a

President Donald Trump arrived Wednesday in Las Vegas to meet survivors of the deadliest mass shooting in modern US history. Air Force One touched down at McCarran International Airport as the FBI was questioning the girlfriend of gunman Stephen Paddock for clues to what drove him to mass murder. &

Secretary of State Rex Tillerson firmly denied Wednesday he had considered resigning from Donald Trump's cabinet and refused to comment on claims he had once called the president a "moron." Washington's top diplomat held a news conference to respond to a report that he had used insulting

Sarin nerve agent was used in an 'incident' at a northern Syrian village in late March, five days before the deadly attack on Khan Sheikhun, the world's chemical watchdog said Wednesday. "Analysis of samples collected (by the OPCW)... relates to an incident that took place again in