Vol. 175 No. #5
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More Stories from the February 28, 2009 issue

  1. Materials Science

    Superconductors escape Flatland

    Iron-based materials allow 3-D current flow, open new doors for understanding superconductivity.

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  2. Health & Medicine

    Donating a kidney doesn’t hurt long-term health

    A survey of donors since the 1960s finds survival rates on par with the general population.

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  3. Health & Medicine

    Fingerprints filter the vibrations fingers feel

    A new robotics study suggests that the ridges select the right frequencies for light touch

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  4. Life

    Serotonin turns shy locusts into cereal killers

    Serotonin can turn solitary locusts into swarming biblical-scale crop destroyers.

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  5. Humans

    When dreams come true

    People see hidden truths in their dreams and use dreams to guide waking attitudes and behaviors, especially when dream content supports pre-existing beliefs, researchers say.

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  6. Health & Medicine

    Chocolate may have arrived early to U.S. Southwest

    A new study suggests that people in America’s Southwest were making cacao beverages as early as A.D. 1000.

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  7. Space

    Smallest known transiting planet discovered

    Astronomers have found the smallest known extrasolar planets that is blocking light from its parent star. The discovery could help reveal information about the structure of planets that may resemble Earth.

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  8. Life

    Earliest whales gave birth on land

    Recently discovered fossils of a protowhale help fill in gaps in the land-to-water transition.

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  9. Space

    Early galaxy bulges in the middle

    By tracing star birth in a galaxy that existed when the universe was less than 1 billion years old, researchers have captured what appears to be the formation of a key galactic component — a central concentration of stars known as the bulge.

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  10. Earth

    Animal ancestors may have survived ‘snowball Earth’

    Chemical fossils in Precambrian sedimentary rock push back the first date for animal life.

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  11. Health & Medicine

    How the body rubs out West Nile virus

    Tests in mice show how the immune system tracks down cells infected with West Nile virus, findings that might explain why some old people fare worst from the virus.

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  12. Genetics

    Dog gene heeds call of the wild

    Domesticated dogs passed a gene for dark fur color to their wild cousins.

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  13. Humans

    Women have hormonal cues for baby cuteness

    Premenopausal women and women taking oral contraceptives are especially sensitive to the cuteness of babies’ faces, partly thanks to raised levels of reproductive hormones, a new study suggests.

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  14. Science Future for February 28, 2009

    Until March 1 Vote for one of six astronomical objects for the Hubble Space Telescope to observe in honor of the International Year of Astronomy. See the candidates at youdecide.hubblesite.org March 6 “Sacred Waters: India’s Great Kumbha Mela Pilgrimage” opens at The Field Museum in Chicago. Learn more at www.fieldmuseum.org April 24 Arbor Day will […]

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  15. Me and the Biospheres: A Memoir by the Inventor of Biosphere 2

    All about the world’s largest global ecology lab. Synergetic Press, 2009, 308 p., $39.95 Me and the Biospheres: A Memoir by the Inventor of Biosphere 2 by John Allen

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  16. The Computer as Crucible: An Introduction to Experimental Mathematics by Jonathan Borwein and Keith Devlin

    Experimental math embraces computers. A K Peters, 2009, 158 p., $29.95 The Computer as Crucible: An Introduction to Experimental Mathematics by Jonathan Borwein and Keith Devlin

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  17. Prairie Dogs: Communication and Community in an Animal Society by C.N. Slobodchikoff, Bianca S. Perla and Jennifer L. Verdolin

    An investigation into how prairie dogs communicate a predator’s presence. Harvard Univ., 2009, 264 p., $39.95 Prairie Dogs: Communication and Community in an Animal Society by C.N. Slobodchikoff, Bianca S. Perla and Jennifer L. Verdolin

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  18. The Atom and the Apple: Twelve Tales from Contemporary Physics by Sébastien Balibar

    A physicist explores chaos, cosmology, fluid mechanics and more. Princeton Univ., 2008, 190 p., $24.95 The Atom and the Apple: Twelve Tales from Contemporary Physics by Sébastien Balibar

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  19. Book Review: Sand: The Never-Ending Story by Michael Welland

    Review by Sid Perkins.

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  20. Book Review: The Pluto Files: The Rise and Fall of America’s Favorite Planet by Neil deGrasse Tyson

    Review by Ashley Yeager.

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  21. Humans

    Nation needs recovery plan for science faculty jobs

    Over the past few months, many graduate students and postdocs have been receiving letters from department chairs apologetically explaining that the faculty job search at Institution X has been canceled. State and private universities are facing declining tax revenues and falling endowments, and are unwilling to raise tuition on newly impoverished families. From Harvard to […]

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  22. Space

    Cosmic mystery

    High-energy invaders from space could signal a nearby pulsar, or perhaps dark matter.

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  23. Life

    Mitochondria Gone Bad

    Problems in the cell’s energy factories power new ideas on disease and aging.

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  24. Earth

    First wave

    The presidents of two island nations draft escape plans, anticipating sea level rise.

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  25. Letters

    Galaxy clusters slide Could the general motion of galaxy clusters (“Galaxy clusters slide to the south,” SN: 10/25/08, p. 12) be evidence of rotational motion of the matter components of the universe on a scale much larger than the observable universe? Would such motion not also result in accelerating expansion of the observable universe, as […]

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  26. Science Past for February 28, 1959

    WEATHER SATELLITE ORBITING — The United States has launched into orbit the first baby weather station in space. It was hurled into its earth-circling path at 10:55 a.m. Feb. 17, and its predicted lifetime is several decades. The batteries powering the radio transmitting weather information, however, have only a two-week lifetime. The 20-inch, 21.5-pound satellite […]

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  27. Supersizing the Mind: Embodiment, Action, and Cognitive Extension by Andy Clark

    Minds aren’t limited to the confines of the brain. Oxford Univ., 2008, 286 p., $35 Supersizing the Mind: Embodiment, Action, and Cognitive Extension by Andy Clark

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