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Genetics

50 years ago, scientists sequenced a gene for the first time

Within five decades, scientists went from sequencing a single gene to sequencing the entire human genome.

Archaeology

Complex supply chains may have appeared more than 3,000 years ago

Finds from one of the world’s oldest shipwrecks hint that miners in Central Asia and Turkey provided a crucial metal to Mediterranean rulers.

Physics

Here’s how to make a fiber-optic cable out of air using a laser

A hollowed-out laser beam heats a tube of air that surrounds cooler air, providing a way to guide light much the way fiber optics do.