Uncategorized

  1. Space

    Pluto blushes red

    Newly released Hubble images of Pluto show an abrupt and unexplained color change.

    By Ron Cowen
  2. Life

    Sperm’s pore propulsion

    Scientists identify a key proton channel that helps explain the dash to fertilization.

    By Laura Sanders
  3. Health & Medicine

    Protein clumps like a prion, but proves crucial for long-term memory

    Study in slugs hints that some molecular 'misbehavior' in neurons may help solidify learning.

    By Tina Hesman Saey
  4. Earth

    Oldest feathered dino shows its colors

    Analysis of a fossil suggests plumage first evolved for display, not flight.

    By Sid Perkins
  5. Earth

    Florida’s big chill may have hammered corals near shore

    January cold snap caused rare wintertime coral bleaching and die-offs for Florida’s coral reefs.