News

  1. Health & Medicine

    Defense Mechanism: Circumcision averts some HIV infections

    Men who get circumcised reduce their risk of acquiring the AIDS virus by more than half.

    By Nathan Seppa
  2. Health & Medicine

    Single drug dose may be better against cholera

    A single dose of the antibiotic ciprofloxacin cures cholera in children as often as a 12-dose regimen of erythromycin does.

    By Nathan Seppa
  3. Planetary Science

    Shoreline for Titan?

    New radar images of Saturn's smog-shrouded moon Titan show evidence of a shoreline cutting across the moon's southern hemisphere.

    By Ron Cowen
  4. Planetary Science

    ’10th planet’ has a partner

    The so-called 10th planet, an object larger than Pluto that ranks as the most distant body known in the solar system, has a moon.