Lyman Page: The Little Book of Cosmology ​(#202)

Lyman Alexander Page, Jr. is the James S. McDonnell Distinguished
University Professor of Physics at Princeton University. He is an
expert in observational cosmology and one of the original
co-investigators for the WMAP probe that made precise observations
of the cosmic background radiation, an electromagnetic echo of the
Universe's Big Bang phase. Along with students and collaborators,
Professor Lyman measures the spatial temperature variations in the
cosmic microwave background (CMB). The CMB, which pervades the
universe, is the thermal afterglow of the big bang. Detailed
knowledge of the magnitude and pattern of the fluctuations in
temperature from spot to spot on the sky, or anisotropy, help us
understand how the universe evolved and how the observed structure,
at sizes ranging from galaxies to superclusters of galaxies, were
formed. From precise measurements of the CMB, one can also deduce
many of the cosmological parameters and the physics of the very
early universe. For example cosmologists have been able to
determine the geometry and age of the universe, the cosmic density
of baryons, the cosmic density of dark matter, and the Hubble
parameter to percent-level accuracy. Lyman is the author of The
Little Book of Cosmology, which provides a breathtaking look at our
universe on the grandest scales imaginable. Written by one of the
world's leading experimental cosmologists, this short but deeply
insightful book describes what scientists are revealing through
precise measurements of the faint thermal afterglow of the Big
Bang―known as the cosmic microwave background, or CMB―and how their
findings are transforming our view of the cosmos. Please join my
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