News

  1. Tech

    Printed robot moves with a beat

    Tiny device created with a 3-D printer employs heart cells to make it move.

    By Rachel Ehrenberg
  2. Earth

    Gulf spill harmed small fish, studies indicate

    Effects vary but dire impacts seen with some very low exposures.

    By Janet Raloff
  3. Health & Medicine

    Protein’s destructive journey in brain may cause Parkinson’s

    Clumps of alpha-synuclein move through dopamine-producing cells, mouse study finds.

    By Laura Sanders
  4. Planetary Science

    Digging deep into Martian soil

    NASA's rover takes a closer look at Mars' surface.

    By Nadia Drake
  5. Space

    Rogue planet found among gang of stars

    Astronomers report the closest such free-floating object to Earth.