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Your search has returned 33 images:
  • Germanium
  • illustration of supernova 1987A
  • supernova simulation
Your search has returned 70 articles:
  • Germanium computer chips gain ground on silicon — again

    First germanium integrated circuits

    Integrated circuits made of germanium instead of silicon have been reported … by researchers at International Business Machines Corp. Even though the experimental devices are about three times as large as the smallest silicon circuits, they reportedly offer faster overall switching speed. Germanium … has inherently greater mobility than silicon,...

    02/09/2017 - 11:00 Materials, Computing
  • Editor's Note

    Supernova story continues, just like science journalism

    Some stories are just too good to let go. Ian Shelton first spotted supernova 1987A on the evening of Monday, February 23, 1987. A notice announcing the discovery appeared in the issue of Science News that went to the printer that Wednesday — and articles followed in each of the next three issues, with more than a dozen stories about the stellar explosion over the course of the year...
    02/08/2017 - 12:45 Astronomy
  • Letters to the Editor

    Readers respond to antibiotics, carbon bonds and more

    Power struggle

    Ninety percent of people who believe that they are allergic to penicillin are not, Emily DeMarco reported in “Most penicillin allergies are off base” (SN: 12/24/16 & 1/7/17, p. 5). A recent study found that testing for penicillin allergies reduced by 34 percent the use of vancomycin, described in the story as “a powerful, last-resort antibiotic.”

    Reader Robin...

    02/08/2017 - 12:42 Health, Chemistry
  • Science Visualized

    Observers caught these stars going supernova

    In A.D. 185, Chinese records note the appearance of a “guest star” that then faded away over the span of several months. In 1572, astronomer Tycho Brahe and many others watched as a previously unknown star in the constellation Cassiopeia blasted out gobs of light and then eventually disappeared. And 30 years ago, the world witnessed a similar blaze of light from a small galaxy that orbits the...

    02/08/2017 - 11:47 Astronomy
  • Feature

    When a nearby star goes supernova, scientists will be ready

    Almost every night that the constellation Orion is visible, physicist Mark Vagins steps outside to peer at a reddish star at the right shoulder of the mythical figure. “You can see the color of Betelgeuse with the naked eye. It’s very striking, this red, red star,” he says. “It may not be in my lifetime, but one of these days, that star is going to explode.”

    With a radius about 900 times...

    02/08/2017 - 08:00 Astronomy, Physics