The main goal of the Observational
Cosmology group at the University of Wisconsin-Madison
is to answer fundamental questions about the beginning
and evolution of the universe.
We specialize in precision
of the Cosmic Microwave Background (CMB) radiation. The image on the
left is a map of the CMB sky from the WMAP mission. The CMB is the
universe. By observing the CMB we hope to learn about the epoch of
inflation, which occured roughly 10-36
the Big Bang.
We are also developing
techniques to observe the
redshifted 21-cm line of
neutral hydrogen gas in order to study the accelerating expansion of
universe, and dark energy.