February 11, 2019
Since the shah’s ouster in February 1979, Iran’s Islamic regime has been propelled by Ayatollah Khomeini’s revolutionary vision and underpinned by its animus toward the United States.
December 19, 2018
This year saw progress in areas from species comebacks to space exploration.
April 25, 2018
The U.S. military’s all-volunteer force has drawn on a shrinking pool of Americans, raising questions about the model’s viability.