News

  1. Health & Medicine

    Angiogenesis Factors: Tracking down the suspects in blood vessel growth near tumors

    Tumors enlist certain bone marrow cells in efforts to grow new blood vessels for self-nourishment.

    By Nathan Seppa
  2. Physics

    15 = 3 × 5: Photons do their first quantum math

    Physicists have performed the first calculation involving manipulation of the quantum states of photons, another step on the road to optical quantum computers.

    By Davide Castelvecchi
  3. Earth

    The Salt Flat That Isn’t Flat: World’s largest playa sports ridges, valleys

    An innovative field survey of the world's largest salt flat, a New Jersey–size playa high in the Andes, reveals that the barren expanse actually has minuscule, centimeter-scale variations in topography.