News

  1. Astronomy

    Record-breaking supernova

    A newly discovered supernova, 100 billion times as bright as the sun, is the most luminous ever recorded.

    By Ron Cowen
  2. Health & Medicine

    Looking for Biomarkers: Protein signature may warn of impending Alzheimer’s disease

    Measuring the amounts of certain proteins in the blood might provide early warning of Alzheimer's disease.

    By Nathan Seppa
  3. Earth

    Bad Acid: Ocean’s pH drop threatens snail defense

    As ocean waters trend toward acidity, a result of atmospheric greenhouse gas buildup, a shoreline snail's defense against predatory crabs may weaken.

    By Susan Milius
  4. Planetary Science

    Portrait of a Martian crater

    An ultrasharp image of part of Mars' Gale crater shows waterborne sediments and volcanic ash.