U.S. space exploration inspired a generation of students and innovators, but NASA’s role has diminished, and the number of global space competitors is growing.

Kim Jong-un hopes a summit with President Trump will lead to sanctions relief, while experts disagree over whether increased pressure would push Pyongyang toward denuclearization.

The role of the Federal Reserve has transformed in the past decade, as it has deployed trillions of dollars to boost the U.S. economy while expanding its regulatory oversight of the nation’s financia…

The ICC was created to bring justice to the world’s worst war criminals, but debate over the court still rages.

China’s Belt and Road Initiative is the most ambitious infrastructure investment effort in history. But is it also a plan to remake the global balance of power?

Tariffs have been applied over the years to protect homegrown industries and target competitors who are seen as using unfair trade practices. They impose costs on both importers and exporters and had been in decline until the recent U.S.-China trade war.

Sub-Saharan Africa is home to many of the world’s longest-ruling heads of state, but civil society and regional blocs may be slowing the trend of extending presidential terms in some areas.

President Trump is rolling back some of his predecessor’s Cuba policies, likely closing out a historic period of détente between the two longtime adversaries.

U.S. troops have been sent to the border with Mexico to supplement the work of Border Patrol agents amid debate over the merits of building a wall. Here are the facts.