Uncategorized

  1. Planetary Science

    Portrait of a Martian crater

    An ultrasharp image of part of Mars' Gale crater shows waterborne sediments and volcanic ash.

    By Ron Cowen
  2. Health & Medicine

    Beware the Starlings: Common birds can carry avian influenza

    Common songbirds such as starlings may be able to carry and spread avian influenza.

    By Brian Vastag
  3. Physics

    Axion Gone: New tests find no sign of anomalous particle

    New experiments contradict earlier claims of the discovery of the axion, a possible constituent of cosmic dark matter.

    By Davide Castelvecchi
  4. Health & Medicine

    Regulating Muscle Decline: Small molecules linked to degenerative diseases

    Snippets of RNA that regulate gene activity play a role in muscle-wasting diseases such as muscular dystrophy.