Milena Glimbovski speaks about the process of starting Original Unverpackt, a supermarket in Berlin's Kreuzberg neighborhood that sells food only in bulk or in recyclable containers.

Sandra Reichmann explains her background and her particular passion for exercise.

With help from a volunteer from the audience, Sandra begins to demonstrate how exercises can be particularly tailored to different age groups.

One of the most significant problems of old age is the risk of falling. However, there are exercises that can be done to strengthen the muscles that may help prevent it.

In this video, Anna and Teresa play a game called "Teekesselchen" ("Teapot"), in which you have to guess a word that has more than one meaning. Such words are called homonyms.

This video uses virtual reality technology to allow viewers to experience the power of a volcano close-up.

Have you ever wondered why the colors of the German flag are black, red, and gold? In explaining how this came to be, this video offers a brief summary of how Germany became one united country.

Could eating less help us look younger, and more importantly, could it help us live longer? A few studies seem to show that this could be the case, but there are no conclusive results yet.

Although it might help with fighting age-related diseases in the future, research into calorie restriction and aging is not so far along – or free of contradictions – that we should factor it into our dietary choices.

In this video, physicist and author Harald Lesch talks about how Germany could phase out coal and nuclear power completely and still meet all of its energy needs.

Germany is not a big enough country to devote all of its land to creating renewable energy – but there is another place with vast expanses of empty space and limitless sunshine.

Do you know what quantum physics involves? The thought experiment of Schrödinger's cat is a good way to understand the basic premise.

Ten-year-old Berenike gives a moving rendition of Udo Lindenberg's song "Wozu sind Kriege da" ("What are wars for"), which was written in 1981 and is unfortunately still very relevant today.

Lena and Wincent are both amazed and moved beyond words by 10-year-old Berenike's performance. But whose team will she decide to join?

David is thirsty for more—you can feel that in his powerful rendition of the German hit "Wildberry Lillet" by Nina Chuba. Will he manage to bowl over the coaches on The Voice Kids 2023 with it—and do his sister proud in the process?