News

  1. Health & Medicine

    A popular sunscreen ingredient can finally be sold in the United States

    The FDA will allow bemotrizinol in sunscreen. The chemical is long-lasting and defends against solar radiation that ages skin.

    By Meghan Rosen
  2. Chemistry

    A new method could spot fentanyl variants no one has cataloged yet

    Researchers used machine learning to help predict chemical signatures for over 1 billion possible fentanyls, including variants never seen before.

    By Rachel Berkowitz
  3. Physics

    Here’s what would happen if you tried to break a photon in half

    A mathematical model shows that attempting to sever a fundamental particle of light could conjure new ones out of thin air.