Politics & Policy
Cascades at Shenandoah National Park in Virginia (Jeff DeWitt/Unsplash https://unsplash.com/license).
Robert Rosner, left, chair of the Bulletin Science and Security Board, and board member Suzet McKinney unveil the time on the Doomsday Clock at a Zoom news conference on Jan. 27. Rosner is a professor of astrophysics at the University of Chicago, and McKinney is CEO and executive director of the Illinois Medical District. (Bulletin of the Atomic Scientists)