Silk, Joseph2017-05-232017-05-232017-05https://hdl.handle.net/11299/188209One of our greatest challenges in cosmology is understanding the origin of the structure of the universe, and in particular the formation of the galaxies. I will describe how the fossil radiation from the beginning of the universe, the cosmic microwave background, has provided a window for probing the initial conditions from which structure evolved and seeded the formation of the galaxies. I will review the outstanding cosmological issues that remain to be resolved, and suggest an optimal choice of future strategy in order to make further progress on understanding our cosmic origins.enFTPIOLIVEFESTthe limits of cosmologyPresentation