Michael Buchanan

In her restaurant, Lee Ae-ran serves everyone — South Koreans and fellow defectors — flavors from home.

A strange purple streak in the night sky baffled scientists and sky-watchers. They called it "Steve." With the help of NASA, we're learning more about this cousin of the aurora.

Mobile hospital ship USNS Mercy is heading to the Indo-Pacific to save lives. The state-of-the-art ship anchors an international team setting sail for the 2018 Pacific Partnership, a disaster-response exercise.

The USS Carl Vinson made a friendship visit to Vietnam — the first time a U.S. aircraft carrier has anchored in the country since the Vietnam War ended four decades ago.

Archaeologist Emily Boak used aerial and satellite imagery to discover hundreds of unrecorded Afghan caravan stops along the Silk Road.

Seventeen-year-old American snowboarder Chloe Kim is ready to wow the world in the halfpipe event at the 2018 Winter Olympics in Pyeongchang, South Korea.

Rex Tillerson highlighted U.S. alliances in a weeklong trip to Europe. Here are the highlights from London, Paris, Davos and Warsaw.

Students are using 3-D printers in "makerspaces," where they turn innovative ideas into reality. At one U.S. university, the space is in a dormitory.

Two Turkish-American politicians entered politics to serve their communities. Learn more about 2017 election winners Tayfun Selen and Hacibey Catalbasoglu.