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http://www.sciencenews.org/view/issue/id/8456
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In the December 5 Issue:
- TABLE OF CONTENTS
- Climate might be right for a deal: Copenhagen negotiations will take steps toward a climate-stabilizing treaty
- Botanical Whales: Adventures in the Tortugas reveal that seagrass fields need saving too
- Breaking the Speed Limit: Studies examine physiology and technology to better foresee the ultimate edge of human performance
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April 28th, 2007
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Astronomers this week announced that they had found Earth's closest known analog outside the solar system, an object with an average temperature that may allow water to be liquid on its surface. (p. 259)
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Women who reach puberty at an early age are more likely to have children who are overweight. (p. 259)
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The Laotian rock rat, which is very much alive, belongs to a rodent family that supposedly vanished 11 million years ago. (p. 260)
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Sleep revs up a person's ability to discern connections among pieces of information encountered in novel situations. (p. 260)
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Pregnant women exposed even to moderate amounts of several common air pollutants tend to have babies with low birthweights. (p. 261)
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Adults 65 and older who report depressive symptoms are 50 to 60 percent more likely to develop diabetes than are their peers. (p. 261)
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Analysis of a volcanic plume that wafted over central Alaska suggests that polarized laser beams can detect airborne ash, which can be a threat to aircraft. (p. 262)
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Accumulating evidence suggests that children and teenagers produced much prehistoric cave art and perhaps left behind many fledgling attempts at stone-tool making as well. (p. 264)
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Researchers have harnessed the power of flotsam—floating items as diverse as tennis shoes, tub toys, and hockey gloves—to chart the path and speed of the Pacific Subarctic Gyre, a group of currents in the North Pacific Ocean. (p. 267)
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NASA scientists are puzzled by a giant, hexagon-shaped feature that covers Saturn's entire north pole. (p. 269)
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A surveillance video shows a worrisome sight: house mice nibbling to death rare seabird chicks on a remote island breeding colony. (p. 269)
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Synovial sarcoma, a cancer thought to arise from joint tissue, actually forms in nascent muscle cells, a mouse study shows. (p. 269)
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When southern Europe receives scant rainfall in the winter, the whole continent tends to bake the following summer. (p. 269)
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A French team has created the first mini-origami figures that fold themselves around droplets of water. (p. 270)
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Contrary to some earlier indications, hormone replacement therapy might not impart heart risks to women who take it during their 50s. (p. 270)
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A new particle accelerator starting up next year in Switzerland should finally discover the origin of mass, unless an older U.S. machine does it first. (p. 270)
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A NASA mission has found new evidence for Einstein's theory of gravity, but its final results have been delayed by unexpected problems. (p. 270)
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(p. 271)
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