All Stories

  1. Particle Physics

    Sam Ting tries to expose dark matter’s mysteries

    Particle physicist Sam Ting is applying a meticulous approach to analyzing positrons in space, testing whether they can reveal clues about dark matter.

    By Andrew Grant
  2. Planetary Science

    Dawn spacecraft arrives at dwarf planet Ceres

    The Dawn spacecraft arrives at Ceres to begin a 14-month investigation of the dwarf planet.

    By Christopher Crockett
  3. Quantum Physics

    Light trick can retrieve missed messages

    Even if photons pass you by, you can still snatch a signal from their electromagnetic wake, physicists propose.

    By Andrew Grant
  4. Astronomy

    Supernova hurls star out of the galaxy

    The fastest-moving star to leave the Milky Way might have been launched by a nearby exploding star.

    By Christopher Crockett
  5. Astronomy

    Hubble telescope sees quadruple

    A galaxy bends light to create four images of the same supernova.

    By Christopher Crockett
  6. Planetary Science

    Dawn spacecraft on final approach to Ceres

    Dawn gets ready to enter the first orbit of its 14-month visit to the dwarf planet Ceres.

    By Christopher Crockett
  7. Animals

    Killer whales follow postmenopausal leaders

    Taking the lead on salmon hunts may be postmenopausal killer whales’ way of sharing their ecological knowledge.

    By Susan Milius
  8. Health & Medicine

    Arsenic spurs adaptation in Argentinian villagers

    The people of San Antonio de los Cobres, Argentina, have genetic adaptations that may help them efficiently get rid of arsenic, a new study shows.

    By Bethany Brookshire
  9. Health & Medicine

    Hepatitis E vaccine shows strong coverage

    A large trial in China indicates that a vaccine can provide 87 percent protection against the hepatitis E virus, which infects 20 million people a year.

    By Nathan Seppa
  10. Health & Medicine

    Report offers stimulating recommendation on coffee

    Results from a committee of experts give the blessing to moderate coffee intake. But as we all raise our mugs, the science behind the report is worth a closer look.

    By Bethany Brookshire
  11. Health & Medicine

    Dose of extra oxygen revs up cancer-fighting immune cells

    Extra oxygen helps immune cells shrink tumors in cancer-ridden mice.

    By Tina Hesman Saey
  12. Humans

    Ancient jaw may hold clues to origins of human genus

    A 2.8-million-year-old fossil from Ethiopia raises questions about the origins and evolution of the human genus, Homo.

    By Bruce Bower