News

  1. Astronomy

    A supernova’s delayed reappearance could pin down how fast the universe expands

    “SN Requiem” should reappear in the 2030s and help determine the universe’s expansion rate.

    By Ken Croswell
  2. Planetary Science

    NASA’s Perseverance rover snagged its first Martian rock samples

    Two tubes of stone drilled from a basalt rock nicknamed Rochette are the first from Mars slated to eventually return to Earth.

    By Lisa Grossman
  3. Animals

    A newfound boa sports big eyes and a square nose

    Among the smallest boas in the world, the Hispaniolan vineboa inhabits a small patch of dry forest along the Dominican Republic’s border with Haiti.

    By Erin Garcia de Jesús
  4. Life

    Infants may laugh like some apes in their first months of life

    Laughter seems to change over life’s early months, perhaps influenced by the unconscious feedback parents give when they play with their little ones.