Science For Sleep | Cold Spot — The Big Bang Scar Nobody Can Explain

Now on Spotify 🎧 Listen here: https://open.spotify.com/show/033FAXP... The afterglow of the Big Bang looks remarkably smooth, yet one region refuses to fit the pattern. In this episode, the Cold Spot — the Big Bang scar nobody can explain becomes a calm journey into one of the strangest features ever found in the cosmic microwave background. Known as the CMB Cold Spot, this enormous patch of sky appears slightly colder than the surrounding universe. It may be a statistical fluke, the imprint of a vast cosmic void, or perhaps a clue that the early universe was more uneven than our simplest models predict. Some more exotic ideas have even suggested collisions with other universes, though there is no evidence that such explanations are necessary. What makes the Cold Spot so fascinating is not that we know what it is, but that we still do not fully know why it is there. Let this gentle exploration of the CMB Cold Spot, the Big Bang scar nobody can explain settle softly into your thoughts. Breathe slowly. Imagine ancient light crossing the universe for billions of years, carrying one faint irregularity from the beginning of time. And rest in the stillness of a cosmos where even its oldest light still holds unanswered questions. Sources: Planck 2018 Results VII — https://doi.org/10.1051/0004-6361/201... Detection of a non-Gaussian Spot in WMAP — https://academic.oup.com/mnras/articl... A Comprehensive Overview of the Cold Spot — https://onlinelibrary.wiley.com/doi/1... The DES View of the Eridanus Supervoid and the CMB Cold Spot — https://arxiv.org/abs/2112.07699 First Observational Tests of Eternal Inflation — https://doi.org/10.1103/PhysRevLett.1...