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What lies beyond the limits of the observable universe? Does the infinite universe have an end, a boundary, or is it truly limitless? In this fascinating video, we dive into the most intriguing cosmological theories to explore what lies beyond the known universe. Multiverse, cosmic expansion, infinite or curved space-time, inaccessible zones... so many hypotheses that push the boundaries of our understanding. With the latest discoveries in astrophysics and cosmology, we examine what scientists think about the cosmological horizon, the cosmic microwave background (CMB), and the effects of accelerated expansion caused by dark energy. Are there other parallel universes or hidden dimensions? Can general relativity and quantum mechanics give us answers? Enjoy watching! Video produced with the help of Marina Serre To financially support the channel (thank you!): https://www.leetchi.com/fr/c/soutien-... I share more content with you here: https://linktr.ee/zebroloss Contact me: [email protected] Sales contact: [email protected]