A Nobel Scientist Found a Crack in the Universe

In this video, we explore one of the deepest problems in modern science — a crack in our understanding of the universe, discovered by the same man who won a Nobel Prize for describing what fills it. In 1998, Adam Riess proved the universe is accelerating. The discovery gave the world dark energy and won him the Nobel Prize in Physics. Twenty-five years later, he is the scientist working hardest to prove that his own discovery was incomplete. Because the universe has started giving two different answers to the same question — and both of them appear to be correct. Sixty-seven. Seventy-three. Two measurements of how fast everything is flying apart. Separated by a gap that has refused to close for over twenty years, despite the most powerful telescope ever built being pointed directly at it. In this video you will learn: What happened in a small Berkeley office in 1997, when a 27-year-old found a result that mathematics itself refuses to allow Why two of the most precise measurements in human history disagree about the expansion rate of the universe How the James Webb Space Telescope was sent to find the error — and found nothing to fix What the 2025 DESI data revealed about dark energy possibly weakening over cosmic time Why Einstein's greatest admitted mistake was resurrected in 1998 — and may now be a mistake again What a fifth force, a cosmic void, and structures that shouldn't exist all have in common This is the story of a scientist who spent twenty-five years trying to prove himself wrong — and a universe that would not let him. Subscribe for more science documentaries, space discoveries, AI, technology and amazing facts. #science #space #technology