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E.g., 09/04/2015
E.g., 09/04/2015
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  • Science Visualized

    Virtual twister reveals possible source of tornado longevity

    View the video

    A rotating updraft within this 20-kilometer-high thunderstorm sired a violent tornado. The twister, which looks quite small  compared with the rest of the towering storm, packed winds at over 320 kilometers per hour and left behind a long trail of devastation. Or it would have, had the storm been real.

    This realistic visualization of a supercell...

    09/04/2015 - 07:00 Climate, Computing
  • Scicurious

    With flibanserin approval, a complicated drug takes the spotlight

    Ever since Viagra was first approved for men, female advocates have been waiting for their “little pink pill.” On August 18, the day arrived: Flibanserin — a failed antidepressant — received...

    09/03/2015 - 16:48 Clinical Trials, Biomedicine, Health
  • News

    First known exoplanets have few counterparts

    Planets and pulsars, the whirling cores of dead massive stars, appear to be an unlikely match. Most of these pulsating stellar corpses can’t nurture fledgling planetary systems, researchers suggest.

    Scrutiny of 151 pulsars turned up no evidence for planets, researchers report in the Aug. 10 Astrophysical Journal....

    09/03/2015 - 15:49 Astronomy, Exoplanets
  • News

    Same math describes relationship between diverse predators and prey

    On land or sea, when the zebras, gazelles or even plankton fruitfully multiply, their predators’ abundance doesn’t increase quite as much, a new analysis proposes.

    This predator-prey relationship— predators increasing at a particular rate that’s less than that of their prey — turned up in studies of the total mass...

    09/03/2015 - 14:23 Animals
  • News

    How farm life can prevent allergies

    Preventing many allergies could be as simple as taking a breath — of farm dust.

    Dust from dairy farms switches on an anti-inflammatory enzyme in the lung cells of mice, researchers report in the Sept. 4 Science. The enzyme keeps the immune system from overreacting to common allergens, such as house dust mites, the team...

    09/03/2015 - 14:00 Health, Immune Science
  • 50 Years Ago

    Two stars were once considered coldest known

    Coolest stars found  The coolest stars yet have been discovered. One is reported to have a surface temperature as low as 800° F.... The other of the two cool stars has a surface temperature of about 1,200°. Both objects are...

    09/03/2015 - 10:00 Astronomy
  • Experiences

    Go to Green Bank to listen to the stars

    Long before we reached Green Bank, W.Va., the gleaming white dish of a massive radio telescope stood out against the lush green vegetation of a remote valley four hours southwest of Washington, D.C. By then, the car radio received only static, and our cellphones hadn’t gotten a signal in hours. To get even closer to the Robert C. Byrd Green Bank Telescope — the world’s largest movable land...

    09/03/2015 - 06:00 Astronomy
  • Culture Beaker

    Why enforced ‘service with a smile’ should be banned

    When you stumble into Starbucks for your morning coffee and are greeted by a super cheery barista inquiring about your day and your life in general, do you ever want to smack that smile off her face?

    Well, pity the barista. In recent years the “service with a smile”...

    09/02/2015 - 15:00 Science & Society, Psychology
  • News

    Ancient pottery maps route to South Pacific

    Ceramic shards unearthed in highland New Guinea more than 40 years ago have now been pegged as the oldest known pottery on the island, by a lot. That discovery offers a first glimpse of encounters between island residents and seafarers that influenced the rise of modern South Pacific societies.

    Eleven of 20 pottery pieces excavated in 1972 and 1973 at Wañelek, a site in New Guinea’s...

    09/02/2015 - 14:00 Anthropology, Archaeology
  • News

    Unhelpful adaptations can speed up evolution

    When organisms enter a new environment, they’re bound to make some missteps. A new study suggests those initial flubs may speed up evolution.

    Trinidadian guppies transplanted from predator-infested waters to streams devoid of predators responded by changing activity of some genes in the brain. Although some changes were helpful, most were disadvantageous. But genes that got off on the...

    09/02/2015 - 13:13 Evolution