An Astronomical Life - Observing the Depths of the Universe" Though
science as a subject can be di?cult, what has been more important for me
is that its practice can also be rewarding fun! This book is crafted to
expose the reader to the excitement of modern observational cosmology
through the study of galaxy evolution over space and cosmic time. Recent
extragalactic research has led to many rapid advances in the ?eld. Even
a suitable skeptic of certain pronouncements about the age and structure
of the Universe should be pleased with the large steps that have been
taken in furthering our understanding of the Universe since the early
1990's. My personal involvement in galaxy research goes back to the
1960's. At that point, galaxies were easily recognized and partially
understood as organized c- lections of stars and gas. What their masses
were presented a problem, which I supposed would just fade away. But
fade it didn't. Distant active nuclei and quasars were discovered in the
mid-1960's. A c- mon view of QSOs was that they have large redshifts,
but what use are they for cosmology or normal galaxy astrophysics? I
shared that conclusion. My expec- tions fell below their potential
utility. In short, the Universe of our expectations rarely matches the
Universe as it is discovered.