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  • Enceladus Might Be Methane Hotspot

    日期:2015-03-26 10:05:26 点击:160 好评:0

    NASA’s Cassini spacecraft spotted a surprising amount of methane erupting from Saturn’s moon Enceladus, suggesting it harbors more methane than we thought. Clara Moskowitz reports...

  • See Movement Better by Bicarb

    日期:2015-03-25 10:13:01 点击:167 好评:0

    Bicarbonate, the chemical that transports CO2 through the blood, increases the "refresh rate" of rod cells in lab tests--which could mean better motion detection. Christopher Intagliata reports...

  • Malaria Parasite Attracts Mosquitoes with Perfume

    日期:2015-03-25 10:11:05 点击:115 好评:0

    The Plasmodium parasite uses an altered type of plant chloroplast to manufacture pine-and-lemon-scented chemicals, which lure in the bloodsuckers. Christopher Intagliata reports...

  • Teotihuacan's Social Tensions Contributed to Its Fall

    日期:2015-03-24 10:31:08 点击:113 好评:0

    The decline and abandonment of the Mexican metropolis may have been hastened by infighting among different cultural and socioeconomic groups. Cynthia Graber reports...

  • Humans and the Amazon: A 13,000-Year Coexistence

    日期:2015-03-24 10:28:11 点击:115 好评:0

    University of Exeter archaeologist José Iriarte talks to freelance journalist Cynthia Graber about his efforts to understand human activity in and influence on the Amazon region for the last 13 millennia ...

  • Music’s Physiological Effects Transcend Culture

    日期:2015-03-23 09:25:55 点击:159 好评:0

    People in the Congo rainforests or in Montreal tended to react to the same piece of music in strikingly similar ways. Andrea Alfano reports...

  • That's What Ya Call a 4-Star Planet

    日期:2015-03-23 09:24:20 点击:125 好评:0

    Astronomers report the discovery of only the second quadruple-star system known to host at least one planet. But they suspect there are a lot more such systems out there. Lee Billings reports...

  • La Nina Conditions Spin Up More Springtime Twisters

    日期:2015-03-19 12:01:54 点击:151 好评:0

    Severe weather forecasters could incorporate El Niño and La Niña cycling to make springtime tornado and hail forecasts. Christopher Intagliata reports...

  • Smoke Makes Twisters More Likely to Strike

    日期:2015-03-19 12:00:22 点击:115 好评:0

    Smoke wafting north from the Gulf of Mexico worsened the already stormy weather brewing across the southeastern U.S. on April 27, 2011. Julia Rosen reports...

  • Human Remains Double Known Rainforest Occupation Time

    日期:2015-03-18 10:10:51 点击:118 好评:0

    Physical remains in Sri Lanka show that people lived in rainforests 20,000 years ago, at least 10,000 years earlier than previous evidence showed. Cynthia Graber reports...