The 95% of the Universe We've Never Found

What if almost everything in the universe is something we still don't understand? In 1933, astronomer Fritz Zwicky discovered that galaxies were moving too fast for the visible matter around them to explain. Decades later, Vera Rubin found the same mystery inside individual galaxies. The evidence pointed toward something invisible, something with gravity, something we still haven't directly detected. It's called dark matter. And it accounts for roughly 27% of the universe. But that's only part of the problem. Another 68% is dark energy, the mysterious phenomenon associated with the accelerating expansion of the universe. Scientists have spent decades building underground detectors, mapping distant galaxies, and testing theories to discover what these invisible components actually are. So far, neither mystery has a confirmed answer. In this video, we explore the missing 95% of the universe, from Fritz Zwicky's original discovery and Vera Rubin's galaxy rotation measurements to the Bullet Cluster, failed dark matter searches, and the enormous problem dark energy creates for modern physics. Here's what you'll discover: Why galaxies behave as if invisible matter surrounds them How scientists detect dark matter without seeing it Why decades of underground experiments haven't found a dark matter particle What dark energy might be and why it makes the universe expand faster Why our best theories of physics still struggle to explain the cosmos What future observatories could reveal about the universe's biggest mysteries The universe isn't just stranger than we imagined. Most of it remains unexplained. And the answer could change everything we think we know about reality. Subscribe for more science mysteries, space discoveries, and mind-bending explanations of the universe.