News

  1. Life

    HIV hides in growth-promoting genes

    The discovery that HIV can trigger infected cells to divide means scientists may need to rethink strategies for treating the virus that causes AIDS.

    By Tina Hesman Saey
  2. Health & Medicine

    Hidden heart rhythm problem may underlie some strokes

    In two clinical studies, people who had had strokes with no trigger sometimes also had undiagnosed atrial fibrillation.

    By Nathan Seppa
  3. Astronomy

    Rare trio of supermassive black holes found

    Three supermassive black holes residing where two distant galaxies collide offer new clues about where to look for gravitational waves.

    By Christopher Crockett
  4. Science & Society

    Weapon inspection scheme would test for nukes but keep designs secret

    Technique borrowed from computer science could improve weapon verification and encourage countries to agree to nuclear disarmament.