News

  1. Health & Medicine

    Mouse hair turns gray when certain stem cells get stuck

    Stem cells involved in giving hair its color must keep moving and changing maturity levels to prevent graying, a mouse study suggests.

    By Tina Hesman Saey
  2. Oceans

    Satellite data reveal nearly 20,000 previously unknown deep-sea mountains

    By looking for tiny bumps in sea level caused by the gravity of subsurface mountains, researchers have roughly doubled the number of known seamounts.

    By Katherine Kornei
  3. Physics

    Black holes resolve paradoxes by destroying quantum states

    A classic quantum experiment done near a black hole would create a paradox, physicists report. But not if the black hole collapses quantum states.