Putting Galaxies on the Scale

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Science  11 Jan 2002:
Vol. 295, Issue 5553, pp. 283-284
DOI: 10.1126/science.1067918

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The properties of galaxies are increasingly becoming accessible to observational astronomy. Comparison of near and distant galaxies provides clues to their evolution. In his Perspective, Bertola reports from a recent workshop that covered one crucial aspect of this comparison: galactic mass. Topics discussed in the Perspective range from the mass of our own galaxy to how galaxies may have evolved.