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National Museum of Natural History

A slab of multicolored, sedimentary rock is pictured with vibrant trees and water surrounding it.

Meet the Scientist Venturing to Remote Canada in Search of the Earth’s Oldest Rocks

Smithsonian researcher Wriju Chowdhury is part of an expedition searching for 4-billion-year-old crystals that could uncover the secrets behind Earth’s early history

A man sits in front of a large, white machine and a row of computer screens in a lab setting.

Uncovering Earth's Secrets One X-ray at a Time

The National Museum of Natural History’s analytical laboratories are revolutionizing how scientists study everything from Civil War tooth fillings to Earth’s oldest rocks

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