COsmic Background Explorer (COBE) map (1993)

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COsmic Background Explorer (COBE) spectrum (1989)

The resulting CMB temperature (Fixen & Mather 2002)

Maps from balloon-borne instruments (2000/2001)

BOOMERAnG <	MAXIMA   CBI
DASI

WMAP Wilkinson Microwave Anisotropy Probe (2003)

WMAP total

WMAP including dipole

WMAP Wilkinson Microwave Anisotropy Probe (2006)

WMAP Polarization

WMAP Wilkinson Microwave Anisotropy Probe (2008)

WMAP Power Spectrum (2003)

WMAP Power Spectrum (2006)

TE EE ···BB Polarization

WMAP Power Spectrum (2008)

Dependence of CMB power on cosmological parameters (Hu & Dodelson 2002)