News

  1. Climate

    Why is the North Atlantic breaking heat records?

    Record-breaking sea-surface temperatures off the coast of Africa may affect the 2023 hurricane season. What’s fueling the unusual heat is unclear.

    By Sid Perkins
  2. Astronomy

    A supermassive black hole orbiting a bigger one revealed itself with a flash

    A supermassive black hole binary system has puzzled astronomers for decades. Now they’ve finally seen direct signals from the smaller of the two.

    By Lisa Grossman
  3. Chemistry

    One photon is all it takes to kick off photosynthesis

    A single particle of light is the spark that begins the process of turning light to chemical energy in photosynthetic bacteria, a new study confirms.