Feature
- Planetary Science
After the Tragedy
NASA's plan to return the space shuttles safely to flight after the Columbia accident is coming under intense scrutiny.
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The Body Electric
An electric field inside an embryo may tell it whether to place an internal organ on its left or right side.
- Health & Medicine
To Your Health?
Doctors are divided on whether the value of screening the torso with X-rays to find symptomless disease outweighs the costs.
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- Earth
The Making of a Grand Canyon
Carving this beloved hole in the ground may not have been such a long-term project.
- Tech
Memory Enhancers
Engineers take aim at increasing the density of data storage on magnetic media.
- Astronomy
Getting the GOODS on Galaxies
A coordinated effort among the most powerful space and ground-based observatories to stare in detail at the same two patches of sky is revealing how galaxies assembled, how rapidly star formation proceeded in the early universe, and whether dark energy has recently revved up the expansion of the universe.
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Buyer Beware
A growing number of psychological studies conclude that excessively materialistic values undermine happiness and well-being, although the emotional effects of pursuing money and fancy possessions remain controversial.
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Snap, Crackle, and Feel Good?
Magnetic fields that map the brain may also treat its disorders.
- Math
Unlocking Puzzling Polygons
Proof settles a wickedly prickly question about unfurling crinkly polygons.
- Math
Infinite Wisdom
A mathematician has proposed a new approach to resolve a long-standing question about infinite sets of numbers.
- Tech
Mind-Expanding Machines
Researchers have designed computer systems aimed at amplifying human thought and perception, such as a new type of cockpit display for aircraft pilots that exploits the power of peripheral vision.
