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.

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!

In this video, you can see the impressive peaks of the Austrian Alps, along with some of the animals that inhabit them in difficult conditions.

People living in the Alps are also anxiously awaiting spring. The Imster Schemenlauf is a traditional parade to drive out the winter.

As the snow melts in many areas of the mountains, plants and animals alike emerge in the fresh spring air.

In this segment, we follow a badger and a fox family through the beautiful sunlit forests of the alps.

In the spring, birds have to work hard to feed their hungry offspring and keep them safe in beautiful, yet harsh environments.

As spring struggles to break through, blooming flowers may be preserved in ice. Meanwhile, the male grouse tries to attract potential mates.

The segment features more footage of the alpine black grouse, as well as a festival held by the local religious community in the valley of Kals.

This episode comes with spectacular views on Austrian lakes and introduces the daffodil festival in Grundlsee.

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.

In this segment, we see how the churned butter is put into a traditional wooden mold, take a look at some more farm animals, and catch a glimpse of the "Daberklamm," an alpine gorge.

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.

Up in the mountains, a vulture and an eagle fight for their territory while conservationists watch closely. The series ends with a view of the Venediger Group, a famous high mountain range.

In this segment, we explore the beautiful landscape around the Staller Saddle mountain pass, visiting alpine roses, a pack of magnificent stags, and a traditional tavern where local farmers carry out their negotiations.