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The Timing of Birth

A hormone unexpectedly found in the human placenta turns out to influence the timing of delivery. This and related findings could yield much needed ways to prevent premature labor

By Roger Smith

The Crash in the Machine

Increasingly, automakers are relying on computer simulations of accidents to develop safer cars more quickly and efficiently

By Michael Holzner, Stefan Thomke y Touraj Gholami

Global Climate Change on Venus

Venus's climate, like Earth's, has varied over time-the result of newly appreciated connections between geologic activity and atmospheric change

By Mark A. Bullock and David H. Grinspoon

A Little Big Bang

A new collider will soon create matter as dense and hot as in the early universe

By Madhusree Mukerjee

Visualizing Human Embryos

A technique called magnetic resonance microscopy is revealing the secrets of early human development

By Bradley R. Smith

The Komodo Dragon

On a few small islands in the Indonesian archipelago, the world's largest lizard reigns supreme

By Claudio Ciofi

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