Skywatch

  • January 29, 2009

    Episode 203: A More Massive Milky Way

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    Shownotes

    Our Milky Way galaxy is known to be massive, but new observations of the speed of star formation along its spiral arms indicate it is much more massive than previously thought. The observations of radio emissions from star formation regions were taken with the Very Long Baseline Array (VLBA), a suite of radio telescope scattered across the globe that work together to map details of regions in the galaxy.