Title:

Galaxy formation: 
successes and challenges for the standard cosmology



Jim Peebles
Princeton



Abstract:

The standard Big Bang cosmology passes a tight network of
tests that show it is a useful description of the
large-scale structure and evolution of the universe. But is
this model, with its mysterious dark sector, adequate for
the observational astronomy of the 21st century, or only the
simplest approximation we can get away with at the present
level of the evidence?  If the latter it will be manifest as
anomalies. I shall discuss the state of two apparent
examples concerning dwarf galaxies in voids and giant
galaxies at low redshifts. I plan to comment on possible
remedies, but my main goal is feedback from the audience on
how serious these apparent anomalies might be.