News

  1. Astronomy

    Some fast radio bursts come from the spiral arms of other galaxies

    Tracking five brief, bright blasts of cosmic radio waves to their origins suggests their sources form quickly in regions with lots of star formation.

    By Lisa Grossman
  2. Health & Medicine

    Here’s what we know about the risks of serious side effects from COVID-19 vaccines

    Allergic reactions, blood clots and possibly heart problems are rare and their risks don’t outweigh the benefits of getting vaccinated, experts say.

    By Tina Hesman Saey
  3. Animals

    The teeth of ‘wandering meatloaf’ contain a rare mineral found only in rocks

    The hard, magnetic teeth of the world’s largest chiton contain nanoparticles of santabarbaraite, a mineral never seen before in biology.