Rosetta tells us about what she learned during her first year studying comet 67P/Churyumov-Gerasimenko — and Philae, asleep on the comet itself, finally wakes up from his hibernation!

Rosetta and Philae were ready for their biggest challenge yet: Philae’s landing on comet 67P/Churyumov-Gerasimenko. When Rosetta said goodbye to her lander and released it onto the comet's surface, the whole world watched in suspense to see what would happen next.

Because they raise so many questions, celestial bodies have always fascinated humankind. Various probes — including Rosetta and her “little brother” Philae — have been sent into space to gather more information. This video presents the probes as courageous and curious figures in a whimsical fairy tale.

It sounds like science fiction: Researchers at the University of Augsburg are developing an app that can recognize a coronavirus infection whenever a potential carrier speaks into the phone. So far, the app has a hit rate of over 80 percent. Copyright: Deutsche Presse Agentur [The German Press Agency]

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.

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?

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?

A private lab in Germany is working to create a vaccine for COVID-19 as quickly as possible. The US and German governments are already vying for access to the results.

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.

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.

In a rare close-up, we see the mother eagle working hard to keep its offspring fed. Then we get a look at the Innergschlöß, an 800-year-old Alpine settlement.

Our exploration of wildlife in the Tyrolean Alps continues as we visit cuddly marmots and one of their most fearsome predators: the golden eagle.

In this segment, we get to know the bearded vulture, a scavenging bird of prey that has resettled in the Hohe Tauern National Park. Now there are even stations in the park that address some of the misconceptions that almost led to this bird's extinction.

Life in the alpine pastures of Tyrol has its own pace in tune with natural cycles. We visit an alpine farmer and his wife and learn about traditional dairy products and how they are made.

Tina interviews Mirja Löhr, the director of the company Ekomo. The start-up has created a heating system that works using induction and can therefore be much more sustainable than heating with oil or gas.