A cargo ship is set to leave Ireland for Russia with alumina, a white powder that experts say is likely used to make weapons

A European spacecraft has begun close inspections of a harmless asteroid rammed by NASA four years ago in a planetary defense test

Russia and Ukraine have agreed to a large prisoner exchange during U.S.-mediated talks

U.S. authorities have charged three men with plotting a campaign of nearly 20 attacks targeting Jewish communities in Europe and the U.S., along with another targeting a British military base

The U.N.'s Human Rights Council has delayed a review of the U.S. human rights record until January

Emissions of heat-trapping carbon dioxide from the burning of fossil fuels decreased slightly this year due to the Iran war

Secretary of State Marco Rubio says Republican losses in the midterm elections won't affect the Trump administration’s approach to foreign policy

World leaders, delegates and climate activists are in Antalya, Turkey, for a U.N. climate summit

The White House aims to use talks with Ukrainian and Russian officials to persuade Moscow to agree to broader negotiations involving European officials