Conservatives are all smiles this week at an annual convention in Washington, celebrating President Donald Trump's win, but beneath the surface lurk tensions central to how Republicans will govern in the next two years and the 2018 election outlook. At the four-day Conservative Political...

Astronomers have found a nearby solar system with seven Earth-sized planets, three of which circle their parent star at the right distance for liquid surface water, bolstering the prospect of discovering extraterrestrial life, research published on Wednesday showed. The star, known as...

Turkey's defense minister said on Wednesday there had been a slight change in the stance of the United States toward an operation on Syria's Raqqa and the role of a Syrian Kurdish militia as a result of Turkey's persistence on the matter. In an interview with broadcaster NTV, Defence...

Russia has called on Syrian President Bashar Assad to stop his bombing campaign while peace talks take place this week, but a political breakthrough on the six-year war remains unlikely, the UN's envoy said Wednesday. Staffan de Mistura's comments came on the eve of a new round of talks in...