News

  1. Health & Medicine

    Bone scan reveals estrogen effects

    Using a scanning technology called microcomputerized tomography, scientists have a new way to look at the difference between bone exposed to estrogen and bone deprived of it.

    By Nathan Seppa
  2. Health & Medicine

    Common antibiotic may cure river blindness

    Tests in cows suggest that tetracycline might kill the tiny worm that spreads river blindness, a disease that infects about 18 million people.

    By Nathan Seppa
  3. Tech

    Satellite links may don quantum cloaks

    A theoretically foolproof scheme to shield secrets via the laws of quantum mechanics demonstrates its readiness to take on Earth-satellite communications.

    By Peter Weiss
  4. Earth

    Excreted Drugs: Something Looks Fishy

    Drugs that the body can't fully use enter waste water, where they may affect aquatic life—or wind up in tap water.