News

  1. Astronomy

    Trio of dead stars upholds a key part of Einstein’s theory of gravity

    A cosmic test fails to topple the strong equivalence principle.

    By Emily Conover
  2. Astronomy

    Pollution is endangering the future of astronomy

    Astronomers discuss multiple threats from pollution that will make it harder to observe the night sky.

    By Dan Garisto
  3. Climate

    Rising CO2 in lakes could keep water fleas from raising their spiky defenses

    Rising CO2 in freshwaters may change how predators and prey interact in lakes.

    By Carolyn Gramling
  4. Health & Medicine

    Not all strep infections are alike and it may have nothing to do with you

    Add-on genes in some bacteria shape the way strains interact with the immune system.