A geologist examines a raw diamond in a Brazilian mine to search for deep-mantle mineral inclusions.
Governor George Sinner works at his desk in the North Dakota State Capitol during the 1987 budget crisis.
A scientist in a clinical lab analyzes bacterial samples next to a digital map showing warming ocean temperatures along the coast.
A group of men in 1840s attire debating in a wood-paneled legislative chamber.
A high-resolution wide-field image of the Perseus Cluster showing thousands of galaxies against a dark sky.
President George W. Bush signs the Homeland Security Act of 2002 in a formal Washington D.C. setting.
A scientist examines a sample of a new recyclable thermoset polymer in a modern research laboratory.
Native American community members attend a public hearing in a North Dakota town hall in 2016.
A close-up of a diamond anvil cell used in high-pressure physics experiments to synthesize new materials.