Welcome to NASA's data center for Cosmic Microwave Background (CMB) research.

Gruber Prize for Cosmology

"The Gruber Foundation proudly presents the 2012 Cosmology Prize to Charles Bennett and the Wilkinson Microwave Anisotropy Probe team for their exquisite measurements of anisotropies in the relic radiation from the Big Bang---the Cosmic Microwave Background. These measurements have helped to secure rigorous constraints on the origin, content, age, and geometry of the Universe, transforming our current paradigm of structure formation from appealing scenario into precise science."

Other members of the WMAP team are: Chris Barnes, Rachel Bean, Olivier Dore, Joanna Dunkley, Benjamin M. Gold, Michael Greason, Mark Halpern, Robert Hill, Gary F. Hinshaw, Norman Jarosik, Alan Kogut, Eiichiro Komatsu, David Larson, Michele Limon, Stephan S. Meyer, Michael R. Nolta, Nils Odegard, Lyman Page, Hiranya V. Peiris, Kendrick Smith, David N. Spergel, Greg S. Tucker, Licia Verde, Janet L. Weiland, Edward Wollack, and Edward L. (Ned) Wright.

More information can be found in the Gruber Foundation Press Release.


This site provides CMB researchers with archive data from NASA missions, software tools, and links to other sites of interest. As a resource for the CMB community, your suggestions are encouraged, and your acknowledgements are appreciated.

The High Energy Astrophysics Science Archive Research Center (HEASARC) and the Legacy Archive for Microwave Background Data Analysis (LAMBDA) have merged into a single organization that will use the name HEASARC. The merged archive will continue to provide all of the services currently being offered by the two archives, while better serving users interested in studies requiring both high energy and microwave data. Users will notice few immediate changes, but we will gradually fully integrate all the services of the archives.

WMAP Nine Year Papers

WMAP Nine Year Cosmological Parameters

WMAP Nine Year Data Products

Lambda Logo and Satellite Collage IRAS Archive Link IRAS Archive Link WMAP Archive Link WMAP Archive Link SWAS Archive Link SWAS Archive Link COBE Archive Link COBE Archive Link Suborbital Archive Link Suborbital Archive Link Link to changes in site LAMBDA Logo Link to Mission statement

If you are not a researcher, you may still find interesting information on the WMAP Public Site and our theory site links.

A service of the HEASARC and of the Astrophysics Science Division at NASA/GSFC
Goddard Space Flight Center, National Aeronautics and Space Administration
HEASARC Director: Dr. Alan P. Smale
LAMBDA Director: Dr. David T. Chuss
NASA Official: Dr. David T. Chuss
Web Curator: Michael R. Greason