News

  1. Astronomy

    Galactic Émigré: Incoming dwarf galaxy could feed its larger kin

    A dwarf galaxy at the periphery of the giant Andromeda galaxy may be a pristine building block for forming galaxies in the modern-day universe.

    By Ron Cowen
  2. Animals

    Scary Singing: Precise birds signal, ‘Don’t mess with us’

    A pair of magpie-larks can advertise their toughness by the precision of the duets they sing.

    By Susan Milius
  3. Health & Medicine

    Blending In: Dissolvable stents promise to protect arteries

    A biodegradable magnesium stent props open clogged blood vessels and then dissolves, circumventing the problems linked to permanent metal stents.

    By Nathan Seppa
  4. Anthropology

    Chicken of the Sea: Poultry may have reached Americas via Polynesia

    Polynesians may have traveled back and forth to South America more than 600 years ago, introducing chickens to the Americas in the process.