Earth
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- Environment
Nanosponges soak up pollutants
Tiny, specially designed particles draw pollutants out of contaminated soil.
- Earth
Earth’s early oxygen boost
The steady buildup of oxygen in Earth's atmosphere may have helped life forms become more complex.
- Environment
A vulture’s hidden enemy
Vultures may be getting a deadly dose of medicine from the carcasses they feed upon.
- Earth
Slip slidin’ away — under the sea
A thin layer of water can keep ocean avalanches moving far and fast.
- Genetics
Animal clones: Double trouble?
From agriculture to medicine to law, animal cloning to create genetic twins could change our lives.
- Agriculture
Protecting cows—and people—from a deadly disease
Mad cow disease has appeared in the United States, but scientists say it can be contained easily.
- Environment
Sounds and silence
Protecting nature's sounds and just taking the time to listen can enrich our lives.
- Tech
Electronic paper turns a page
Changeable ink and battery-powered paper may make textbooks lighter and bring video newspapers into daily use.
- Earth
Killer space rock snuffed out ancient life
Rock fragments from Antarctica suggest a huge meteor struck Earth 250 million years ago.
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- Environment
Will climate change depose monarchs?
If Mexico gets too wet, migrating monarch butterflies could lose their winter refuges.
