Physics Colloquium - Exploring the Dark Universe Using Weak Gravitational Lensing

April 3, -
Speaker(s): Henk Hoekstra
We have learned much about the origin and evolution of the Universe, but its main ingredients remain a mystery: atoms only make up only 5%. The rest consists of dark matter and dark energy, components for which we lack a fundamental physical theory. Better observations are needed to guide theory, and weak gravitational lensing plays an important role in mapping the evolution of the large-scale structure which will allow us to distinguish between cosmological models. However, many challenges remain if we are to extract cosmological information from the complex data that are being collected.



Michael Troxel