IT does not take much to stir Dan Goldin to grand visions, and at last winter's American Astronomical Society meeting in San Antonio, Texas, the NASA Administrator was in rare form. He had just learned that a panel headed by Alan Dressier of the Carnegie Observatories had proposed an orbiting four-metre telescope as the logical successor to the Hubble Space Telescope. Wonderful, Goldin told the assembled astronomers, except that he thought Dresslerwas thinking too small.
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