Feature
- Earth
Water for the Rock
A long-popular theory about how Earth got wet—that the oceans are puddles left by an ancient rain of comets—doesn't seem to hold water, and new hypotheses suggest that the celestial pantry is now empty of a key ingredient in the recipe for Earth.
- Astronomy
Rethinking an Astronomical Icon
Examining the Eagle nebula's pillars of creation with infrared detectors, scientists are viewing an astronomical icon in a whole new light.
- Ecosystems
Are They Really Extinct?
A few optimists keep looking for species that might already have gone extinct.
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A Maverick Reclaimed
A small band of researchers wants to resuscitate the ideas of Egon Brunswik, a brilliant but tragic psychologist who died almost 50 years ago.
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Channel Surfing
The newly revealed three-dimensional structures of proteins called ion channels reveal the secrets of their crucial function.
- Earth
Avalanche!
Laboratory studies of how snow crystals change shape under fluctuating environmental conditions and computer analyses that match the patterns of past avalanches with detailed meteorological data are helping scientists uncover the secrets of avalanches.
- Health & Medicine
Tracking Tumors
Researchers are trying to visualize molecular and cellular changes as a cancer responds to therapy in order to predict whether treatments are effective sooner than it's currently possible to determine.
- Materials Science
Materials Take Wing
Materials scientists are finding new uses for the billions of pounds of feathers produced each year by the poultry industry.
- Astronomy
The Milky Way’s Middle
Sensitive X-ray, infrared, and radio telescopes are now providing an extraordinarily clear view of the dust-shrouded center of our galaxy.
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- Anthropology
A Fair Share of the Pie
A cross-cultural project suggests that people everywhere divvy up food and make other economic deals based on social concepts of fairness, not individual self-interest.
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Meeting Danielle the Tarantula
Insect zoos have no lions, tigers, or bears but can give plenty of thrills, courtesy of tarantulas, giant beetles, and exotic grasshoppers.
