Frances Arnold's game-changing technique of "directed evolution" creates enzymes with unusual capabilities. Her own evolution made it possible.

The Cambrian explosion, beginning roughly 540 million years ago, is famous for the sudden appearance of major animal groups. Fossil sites such as Canada’s Burgess Shale capture that dramatic surge.

Two face-on spiral galaxies take up almost the entire view, both set against the black background of space. At first glance, their bright cores, and red and blue spiral arms make the galaxies look ...

The complete assembly of each human chromosome is essential for understanding human biology and evolution. Using complementary long-read sequencing technologies, we complete the first linear assembly ...

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