[Dates in brackets are last edit.]

    H.01 How many stars, galaxies, clusters, QSO's etc. in the
         Universe? [1997-08-06]
    H.02 Is there dark matter in galaxies? [1997-12-02]
    H.03 What is the Hubble constant?  What is the best value? [1995-07-19]
    H.04 How are galaxy distances measured? [1995-06-29]
    H.05 When people speak of galaxies X billion light years, does
         this mean they are that far away now or were that far away
         when the light left them? [1997-08-06]
    H.06 What are QSO's ("quasars")? [1995-06-29]
    H.07 Are the QSO's really at their redshift distances? [2003-02-18]
    H.08 What about apparent faster-than-light motions? [1995-06-29]
    H.09 What's the Local Group? [1999-05-19]

For an overall sense of scale when talking about galaxies, see the
Atlas of the Universe, <URL:http://anzwers.org/free/universe/>.