The idea that our universe is not as unique as we think not only inspires the imagination of authors and filmmakers, but also preoccupies more and more researchers. The theories we use to explain the Big Bang also predict the formation of other parallel worlds. So do we really live in the multiverse? With childlike curiosity, we plagued our young minds with the question of where the universe ends and what might be behind it. But cosmologists have long known that our observable universe is only a tiny section of the bigger picture. But is it ultimately limited or does it extend into infinity? Research has so far been unable to determine or rule out either with certainty. It is remarkable that theories that explore the origin of the cosmos provide clear evidence of the formation of not just a single universe, but predict a process through which universes run like a kind of cosmic assembly line. According to this, we would exist in a multiverse. With highly fascinating consequences that have left their mark, not least in pop culture: reflections of ourselves in worlds that are astonishingly similar to ours, but also in those where the sum of our decisions has shaped us into completely different personalities. The question remains: is all this just pure fantasy, or can science bring us closer to the answer as to whether we really live in a multiverse? Science documentary series, directed by Christian Offenberg (D 2023, 30 min) #multiverse #paralleluniverse #42 Video available until 06/01/2025 Sources and further links: Why we can only see a small part ???? of the universe We have an observation horizon that we cannot see beyond. Because there is a maximum speed for light in space and the universe has a finite age. https://www.cosmos-indirekt.de//Physi... (French: https://www.sciencesetavenir.fr/espac... ) Cosmologists have carried out special measurements on the cosmic microwave background radiation to find out: Our universe appears to be flat and thus considerably larger than what we can see. It may even be infinite. How they arrived at this conclusion is explained here: https://www.geo.de/natur/2968-rtkl-un... (French: https://trustmyscience.com/univers-es... ) The multiverse zoo - the different variants and how they might have come about There are many different ideas and theories about what the multiverse (or more precisely: the instances of the universe) might look like. Here is a comprehensive overview: https://www.interaktionstheorie.org/m... (French: https://6i2n6aworh.preview.infomaniak... ) A very insightful article on the subject can be found here (in English): https://bigthink.com/starts-with-a-ba... Ancient philosophy in the field of ropes: A text that delves deeply into the details of the multiverse. https://6i2n6aworh.preview.infomaniak... Current approaches to getting closer to proof????of the multiverse Hiranya Peiris and her colleagues are trying to find an analogue for the situation at the Big Bang in the Bose-Einstein condensate. Together with data on the cosmic microwave background radiation, they might be able to find evidence of a neighboring universe. More here (ENG): https://inspirehep.net/literature/267... and https://www.quantamagazine.org/multiv... Music???? in this episode Ludwig Göransson - The Mandalorian ???????????? Subscribe to ARTE's YouTube channel: / artede Follow us on social networks: Facebook: / arte.tv Twitter: / artede Instagram: / arte.tv