Feature
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Beast Buddies
As researchers muse about the evolutionary origins of friendship, even the social interactions of giraffes are getting a second look.
- Physics
A Spin through Space-Time
After 40 years of preparation, satellite Gravity Probe B is scheduled to launch next month and test the prediction that massive bodies, such as Earth, twist space itself as they rotate.
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- Chemistry
The Nature of Things
An earth scientist's proposed alternative periodic table of elements is emblematic of the growing desire among scientists to recast this 130-year-old chart.
