Cosmology: From Particles to Galaxy Clusters

We live at a time when technological advances are allowing us to explore ideas faster than ever before. So today, we bring you lab results on ice that affect how we see the outer solar system, and observations of galaxies that affect our understanding of the universe's formation. We go from things smaller than a proton – which we just learned is 0.73 femtometers across -- to galaxy clusters 10s of millions of lightyears across. It's all tied together, and we'll tell you how. (This episode originally aired on television February 11, 2023)