- :: Atom & Cosmos
- :: Body & Brain
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http://www.sciencenews.org/view/issue/id/9453
March 8th, 2008
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Some colorectal growths that are precancerous aren't polyps. (p. 147)
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The chemical composition of mineral formations in caves along the Grand Canyon may provide fresh insight into the chasm's history, including its age and the rate at which it was carved. (p. 147)
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Thanks to a lucky break and an overactive galaxy, astronomers report the earliest detection yet of a normal supernova—the explosive death of a massive star. (p. 148)
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Accomplished jazz pianists are able to improvise musical passages thanks in part to a set of reactions at the front of the brain that free self-expression from conscious monitoring and self-censorship. (p. 148)
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Some centenarians carry mutations in a pathway associated with longevity in worms and fruit flies. (p. 149)
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Physicists have created the optical analog of a black hole's surface of no return, a setup that could help test whether actual black holes glow. (p. 149)
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When pollinators aren't loyal to a single species of orchid, the plants maintain their species integrity by stymieing reproduction. (p. 149)
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A new way to overcome tumors' defenses against the immune system marks an important step toward effective cancer vaccines. (p. 150)
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Sea level has dropped about 170 meters in the past 80 million years, thanks in part to the thinning of ocean crust and the formation of land-based ice sheets. (p. 150)
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The gas well-known for its smell of rotten eggs is, recent studies show, a ubiquitous concoction in the body. New studies suggest that the hydrogen sulfide occurring naturally inside us can be both friend and enemy to our health. (p. 152)
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New fossil finds suggest that the complex features of mammals originated earlier than previously thought and might even have evolved independently in different mammalian lineages. (p. 154)
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(p. 157)
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Corals in the western Pacific have escaped bleaching linked to rising ocean temperatures. (p. 158)
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Add flip-open cell phones to the list of crime-scene items that might harbor a suspect's DNA. (p. 158)
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Aerial surveys that scan the ground at many wavelengths, some visible and some not, may offer a way to quickly and easily detect mass grave sites. (p. 158)
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(p. 159)
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Book Review: Charles Darwin’s On the Origin of Species: A Graphic Adaptation
Review by Sid Perkins
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Review by Sid Perkins
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