News

  1. Humans

    Ancient human bones reveal the oldest known strain of the plague

    The earliest known plague strain emerged about 7,100 years ago and was less contagious as the one behind Black Death — but was still deadly.

    By Jaime Chambers
  2. Climate

    3 things to know about the record-smashing heat wave baking the Pacific Northwest

    Road-buckling, cable-melting, life-threatening heat waves in the Pacific Northwest may become more common as global temperatures rise.

    By Carolyn Gramling
  3. Physics

    Gravitational waves reveal the first known mergers of a black hole and neutron star

    For the first time, LIGO and Virgo have detected long-anticipated gravitational waves from a black hole merging with a neutron star.