7,733 results
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Continental Hearts
Ancient expanses called cratons pose a geological puzzle
- Earth
Warm spell spurred tropical biodiversity
The number of plant species exploded in South America as atmospheric carbon dioxide, and temperatures, rose abruptly about 56 million years ago.
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Basic research generates jobs and competitiveness
Trained as a mechanical engineer in India, Subra Suresh researched the interfaces between engineering, biology and materials science before becoming dean of engineering at MIT and, as of October, director of the U.S. National Science Foundation. In February in Washington, D.C., at the annual meeting of the American Association for the Advancement of Science, Suresh […]
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- Life
Helping Bats Hold On
Scientists seek a savior as a deadly fungal pandemic explodes through vulnerable colonies.
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Into orbit
MESSENGER pays a yearlong visit to Mercury.
- Earth
Seismologists rumble over quake clusters
Japan tremor may be part of a second grouping of great quakes since 1900, some scientists say.
- Paleontology
Early meat-eating dinosaur unearthed
Pint-sized, two-legged runner from Argentina dates back to the dawn of the dinos, 230 million years ago.
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Over the Coasts: An Aerial View of Geology by Michael Collier
Review by Sid Perkins.
- Earth
Geomagnetic field flip-flops in a flash
Rocks in Nevada preserve evidence of superfast changes in Earth’s magnetic polarity.
- Space
Mars shows signs of recent activity
The surface of Mars had abundant liquid water as well as volcanic activity during the past 100 million years, a new study of the Martian atmosphere suggests.
