Enjoy the video for the song "Unter den Wolken" from the German rock band Die Toten Hosen.

German band Die Toten Hosen references the character Alex DeLarge from Stanley Kubrick's film A Clockwork Orange.

In “Kamikaze,” rock band Die Toten Hosen sing about a relationship that’s so intense, it may self-destruct.

Boomer punk rock band Die Toten Hosen sings an angsty ode to a friendship that began in youth, survived everything, and continues today.

Air travel has been the focus of much scrutiny lately due to its devastating effects on the environment. How will the aircraft of the future address this problem?

What sounds like a distant vision of the future is already possible today – at least when it comes to technology. Will quadcopters and "soulless" unmanned aircraft soon be transporting hundreds of passengers over long distances?

Freaked out by the idea of a pilotless plane? How about one without any moving parts at all – no turbines, no propellers? The next generation of aircraft could involve ion propulsion, which allows planes to take off and land anywhere – all without making a sound.

The CERN [European Organization for Nuclear Research] is the largest particle physics laboratory in the world. Scientists from all over the world work together here and try to find answers to the questions about the secrets of our universe.

Julia and Marie have recently moved to Berlin and are waiting for their friend Brigitta to arrive for a visit.

After picking her up from the train station, the two roommates are very excited to show Brigitta their apartment. She is impressed, but also very tired from traveling.

After a good night's sleep and a delicious breakfast, Brigitta's friends want to take her out to see their neighborhood. They hope that they can even convince her to move there.

Brigitta finds out that her friends are having some trouble getting along as roommates and communicating about their expectations.

When Marie comes home and has a few complaints about living with Julia, it's clear to Brigitta that the two of them need to talk.

When all three friends are back at the apartment, Brigitta encourages Marie and Julia to speak about what's bothering them.

Julia met a really nice guy at a party that the three friends attended. The next day, they talk about how she should proceed.