News

  1. Physics

    Dusty Fireball: Can lab-made blob explain ball lightning?

    Artificial cousins of ball lightning contain microscopic particles, just like a model says they should. With video.

    By Davide Castelvecchi
  2. Health & Medicine

    Phoenix Heart: Replacing a heart’s cells could ease transplants

    Scientists removed all the cells from a dead rat heart, injected new heart cells, and produced a beating heart, paving the way for eventually growing organs for transplantation in humans.

    By Patrick Barry
  3. Health & Medicine

    Getting the Red Out: Drug improves kids’ psoriasis symptoms

    The rheumatoid arthritis drug etanercept clears up psoriasis in children and may become the first systemic medication for the ailment in youngsters.