Astronomy & Observing News

WMAP Bolsters Case for Cosmic Inflation

The cosmic microwave background (CMB) is leftover radiation from the Big Bang redshifted (stretched), by the universe's expansion, into the microwave region of the spectrum. In this image NASA's Wilkinson Microwave Anisotropy Probe (WMAP) records minuscule temperature differences in the CMB as different colors. The hotter and cooler spots evolved…

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