Why USO tours were vital for troop morale in the Pacific

While the science behind the high bypass ratio engine in a 747 plane may seem complicated, the results are striking. It's capable of delivering over 70 percent more power than a standard engine.

Admiring the power and innovation of a 747 engine (2:46)

Many scientists believe that black holes make sense in the realm of theoretical physics, but couldn't really exist in real life. Capturing an image of a black hole would change all that.

How one picture would prove Black Holes actually exist (3:09)

A team of mechanics are in the process of removing the jet engines from a 747. It's painstaking, careful work—one mistake can lead to irreparable damage to the costly engines.

Removing the engine of a 747 needs expertise and care (3:45)

After years of planning by over 200 international scientists, the data purported to show the first ever image of a black hole is ready. The team gathers for the big reveal—it's a seismic moment in astrophysics.

Scientists reveal first-ever photograph of a Black Hole (3:01)

How do you transport the pieces of the world's biggest plane, the Airbus A380, to its assembly plant in Toulouse, France? The answer is as complex as the plane's sophisticated design.

Assembling the Humongous Airbus A380 Superjumbo (2:59)

The F-117 Nighthawk is the ultimate stealth fighter, virtually undetectable to radar. But on a bombing raid over Belgrade in 1999, Colonel Dale Zelko is shocked to see two missiles locked in on his plane.

A U.S. bombing mission over Serbia turns into a nightmare (3:32)

The NTSB investigation into the crash of the VSS Enterprise on October 31 2014 zeroes in on a faulty display. Did this convey false information to the pilots?

Did a faulty display mislead SpaceShipTwo pilots? (2:49)

It's a tricky assignment: transporting a giant satellite dish 500 miles by lorry through narrow French roads, to the Belgian port of Antwerp. From there, it will be loaded onto a ship sailing to Chile.

French roads may not be big enough for this giant satellite dish (3:21)

The VSS Enterprise, which crashed on October 31, 2014, was powered by a new rocket motor with an experimental hybrid fuel. Did this cause the spacecraft to go down?

Why did Virgin Galactic's SpaceShipTwo break apart mid-flight? (2:58)