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  1. Health & Medicine

    Nicotine spurs vessel growth, maybe cancer

    Test-tube and mouse experiments show that nicotine induces angiogenesis, the formation of new blood vessels.

    By Nathan Seppa
  2. Astronomy

    Andromeda feasts on its satellite galaxies

    A new study reveals that the Andromeda galaxy, the nearest large galaxy to the Milky Way, is a cannibal, devouring its tiny galactic neighbors.

    By Ron Cowen
  3. Earth

    Is Nessie merely a bad case of the shakes?

    An Italian scientist makes the controversial suggestion that the original source of the legend of the Loch Ness Monster, as well as blame for many of the modern encounters with the supposed beast, may be seismic activity beneath the lake.