The 2023 short course “Nuclear Energy in a Low-Carbon Future: Key Facts and Issues” was held at MIT on Aug. 1-3, 2023.  The goal of the course is to improve understanding of nuclear energy and its potential role as a tool for decarbonization and energy security. Sixty participants and fifteen speakers attended in-person, with an additional forty remote attendees. Participants included local, state and federal government decision makers, journalists, scholars, educators, members of NGOs, foundations, energy regulators and think tanks.