Sylvea Pagan Westphal

Sylvia Pagán Westphal on “High Hopes for a New Kind of Gene”

By Megan Gambino

Javier Movellan with robot

Robot Babies

Can scientists build a machine that learns as it goes and plays well with others? A new robot design draws on ways human babies learn about the world
By Abigail Tucker

Dr Carlo Croce in his lab

High Hopes for a New Kind of Gene

Scientists believe that microRNA may lead to breakthroughs in diagnosing and treating cancer
By Sylvia Pagán Westphal

Annette von Jouanne at Oregons Otter Rock Beach

Catching a Wave, Powering an Electrical Grid?

Electrical engineer Annette von Jouanne is pioneering an ingenious way to generate clean, renewable electricity from the sea
By Elizabeth Rusch

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Strange Plants

<strong>Name:</strong> Resurrection fern (<em>Selaginella</em> <em>lepidophylla</em>)<br> <strong>Habitat:</strong> Deserts of Mexico and the southwestern United States<br> <strong>Strange Factor:</strong> During frequent droughts, it folds up its stems into a tight ball and goes into a state of dormancy that can last for years. When the rains return, the plant

Earthly Wonders

A slideshow of the world's strangest plants

National Parks

<strong>Glacier Bay National Park and Preserve, Alaska</strong><br> The dramatic tidewater glaciers that define this 3.2-million-acre park are remnants of the Little Ice Age that began about 4,000 years ago. With 16 active glaciers, Glacier Bay is the park

Off the Beaten Path

Experience the rich diversity of America's national parks

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July 2009 Issue Cover

July 2009

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Photo Essay

The Magellanic Penguins of Punta Tombo

Explore photos from Eric Wagner's experience with the Magellanic penguins of Punta Tombo