• January 11, 2007

    Episode 77: Meet the Neighbors

    Download this episode


    The population of known stars in our stellar neighborhood ? within about 33 light years ? has increased by 16 percent in six years. That?s not because the number of stars has increased, but because astronomers are working hard to find these stars, conducting a kind of cosmic census of our region of space. By finding all the stars in our stellar neighborhood, scientists identify possible targets for planetary systems.