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Indigenous Knowledge Can Help Solve the Biodiversity Crisis

HANNAH RUNDLE

People who live off the land depend on keeping ecosystems intact, and scientists are tapping into their unique expertise -- Read more on ScientificAmerican.com

Aleksei Leonov, First to Walk in Space, Dies at 85

RICHARD GOLDSTEIN

The Russian cosmonaut’s thrilling feat in 1965 nearly cost him his life, but raised Soviet prestige during the Cold War space race against the United States.

The Twitch That Helps Your Intestines Grow

VERONIQUE GREENWOOD

Pulsing movements in an embryo are crucial to helping intestines grow into the wonder tube that it is, a study finds.

Five Myths about Energy Poverty

TISHA SCHULLER,TODD MOSS

Thinking too small is unintentionally condemning millions to a lack of prosperity -- Read more on ScientificAmerican.com

Aviation Is on a Low-Carbon Flight Path

WADE ROUSH

Buy offsets if you want, but for real hope, look to electric planes -- Read more on ScientificAmerican.com

How Can We Reverse the Decline in Breast Cancer Screening?

PAM CUMMING

Making it more convenient and less painful would be a great start -- Read more on ScientificAmerican.com

National Governments Can't Solve Climate Change Alone

ANGEL HSU

Cities, regions and businesses are also crucial players -- Read more on ScientificAmerican.com

Can Mayors Save the World From Climate Change?

DAMIEN CAVE

Australia’s northern coast is a case study on the impacts of a warming planet. Small-town leaders there are struggling with constituents who doubt reality.