The nuclear energy sector finds itself at a crossroads— in the US as well as globally. Environmentalists and policymakers are increasingly calling for nuclear energy to make substantial contributions to our future low carbon energy systems, even as nuclear energy remains at the center of polarizing debates about nuclear waste, safety, proliferation, and inequitable treatment of communities of color displaced or harmed by nuclear facilities. Reimagining a new future for the nuclear sector requires repairing and building trust with society and a responsible stewardship of nuclear technologies and nuclear wastes that centers principles of environmental justice. Through this conversation, we hope to begin to reimagine the technological, institutional, intellectual, and ethical foundations of the nuclear energy sector.