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Nature 392, 228-229 (19 March 1998) | doi:10.1038/32532

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Galaxy formation:  Clumps and bumps on the road

Melinda L. Weil1

Astronomers who probe the mysteries of galaxy formation traverse a bumpy road. Some galaxies are easy to distinguish by shape: there are spheroidal ellipticals, and spirals, which contain a bulge at the centre of a disk of stars in which spiral arms curl.

  1. Melinda L. Weil is in the Astronomy Department, Columbia University, 538 West 120th Street, New York, New York 10027, USA.
    e-mail: Email: mweil@astro.columbia.edu