New Insights into the Infant Universe

I will describe the latest results from observations with the Atacama Large Millimeter/submillimeter Array and the Expanded Very Large Array of galaxies 7-12 billion years ago, when galaxies first formed. Galaxies in this nascent stage were dominated by gas and dust that emit primarily at radio wavelengths and are thus well-traced by these two observatories. Using these data we are able to study, for the first time, how the first stars and black holes formed and how galaxy disks assembled and evolved.