South Korean pop stars make rare performance appearance for Kim Jong Un

This year, scientists have recorded and observed galactic interactions, atmospheric phenomena and the first images of a black hole.

A look at the president’s visits, speeches and meetings with dignitaries.

The couple, who have a boy named Archie, announced on Jan. 8 that they would step back from being royals, become financially independent, and split their time between North America and the United Kingdom.