Rank 39 documents WMAP — the Wilkinson Microwave Anisotropy Probe that transformed cosmic microwave background measurement from fuzzy blobs into precision cosmology. Launched 30 June 2001 aboard Delta II, the 840 kg spacecraft operated from Sun–Earth L2 under Charles Bennett's Goddard/Princeton team, scanning the sky at 23–94 GHz with angular resolution near 0.3 degrees across nine years of data releases. WMAP pinned the universe's age at 13.77 billion years, confirmed flat geometry, quantified dark matter and dark energy proportions, and validated inflationary model predictions in the CMB power spectrum's acoustic peaks. The mission succeeded COBE's pioneering detection and handed the baton to Planck. Wallimilist renders WMAP gold spacecraft, CMB sky map arc, L2 orbit diagram, and power spectrum graph exactly as the master PNG dictates — 2001 Explorer kicker, cream-navy-gold palette, and curator copy on precision cosmology heritage.