• February 26, 2009

    Episode 207: Ballistic Stars

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    Young stars may get kicked out of their orbits and race through space, creating arrowhead-shaped "bow shocks" ? similar to ripples in the water created by a speed boat -- in the interstellar medium. The stars are plowing through the gas that drifts through space, bunching it up. Astronomers have not found many of these stars, but there's no set place to look ? so there may be many more out there.