News

  1. Physics

    Physicists take a major step toward making a nuclear clock

    By tweaking the energy of a thorium nucleus with a laser, scientists demonstrated a key step to building clocks based on the physics of atomic nuclei.

    By Emily Conover
  2. Astronomy

    How a 19th century astronomer can help you watch the total solar eclipse

    Astronomer Maria Mitchell’s observations of total solar eclipses from more than 100 years ago hold tips that are still relevant for watching an eclipse.

    By Briana Brownell
  3. Health & Medicine

    Bird flu has infected a person after spreading to cows. Here’s what to know

    H5N1 has wreaked havoc on birds around the globe and occasionally made the jump to mammals, including cows.