Welcome to the Brown University Observational Cosmology group. We are involved in several research collaborations. We measure what happened in the early universe a fraction of a second after the Big Bang using the Cosmic Microwave Background. We also use the redshifted 21 cm emission to map the large scale structure of the universe. While not cosmology, we also have an interest in characterizing exoplanets atmospheres. To carry out these projects we design and build ground-based, balloon-borne and space-based instruments and analyze the data from these experiments.


A map of the early universe made using the Wilkinson Microwave Anisotropy Probe (WMAP)

WMAP and Planck teams awarded the 2019 Giuseppe and Vanna Cocconi Prize
WMAP team awarded the 2018 Breakthrough Prize in Fundamental Physics.   Nature news.
WMAP team awarded the 2012 Gruber Cosmology Prize
WMAP paper published in 2011 is most highly cited paper in 2011 (564)
How was this map made?
The Latest WMAP Papers (Technical)


Department of Physics
Brown University
Travel to Brown

Gravitational Lensing: Prof. Ian Dell'Antonio
Particle Astrophysics: Prof. Rick Gaitskell
Theoretical Astrophysics and Cosmology: Prof. Savvas Koushiappas

Link to Prof. Tucker's Department of Physics page

Contact Information for Tucker Lab at Brown University:
Department of Physics
Brown University, Box 1843
182 Hope Street
Providence, RI 02912

Tel: 401-863-1352
Location: Barus&Holley 018