

At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.

Witness wild weather, emergency landings, and animal invaders at Ted Stevens International Airport in Anchorage, Alaska, one of the world's busiest cargo airports.

Trans-Air Service Flight 671 suffers an in-flight separation of its two right engines while en route to Kano, Nigeria, forcing the pilots to make an emergency landing at Istres-Le Tubé Air Base in France.

A design fault leads to an explosion on a DC-10 and two years later the same design fault causes another tragedy.

The investigation into the 2014 crash of a TransAsia flight uncovers a systemic problem with the airline.

Three planes fatally out of balance force investigators to question every calculation; it's a flight risk that's entirely preventable, and yet repeated disasters reconfirm the need for critical backup systems.

During a storm, a strong gale slams Delta Air Lines Flight 191 to the ground, killing most people on board.

A freight train carrying an excess of cargo loses its brakes while descending a mountain causing it to gain speed and derail into a neighborhood killing several people.