  The 2dF Galaxy Redshift Survey (2dFGRS) has produced a three-dimensional map
of the distribution of 221,000 galaxies covering 5% of the sky and reaching out
to a redshift z=0.3. This is first map of the large-scale structure in the
local Universe to probe a statistically representative volume, and provides
direct evidence that the large-scale structure of the Universe grew through
gravitational instability. Measurements of the correlation function and power
spectrum of the galaxy distribution have provided precise measurements of the
mean mass density of the Universe and the relative contributions of cold dark
matter, baryons, and neutrinos. The survey has produced the first measurements
of the galaxy bias parameter and its variation with galaxy luminosity and type.
Joint analysis of the 2dFGRS and cosmic microwave background power spectra
gives independent new estimates for the Hubble constant and the vacuum energy
density, and constrains the equation of state of the vacuum.
