Uncategorized

  1. Earth

    Storm Norms: Caribbean corals and sediments yield clues to hurricane frequency

    The recent increase in hurricane activity in the North Atlantic, a phenomenon that some scientists blame on climate change, actually reflects a return to normal after a lull in the 1970s and 1980s.

    By Sid Perkins
  2. 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
  3. 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.