The detailed, all-sky picture of the infant universe created from nine years of WMAP data. The image reveals 13.77 billion year old temperature fluctuations (shown as color differences) that correspond to the seeds that grew to become the galaxies. The signal from our galaxy was subtracted using the multi-frequency data. This image shows a temperature range of ± 200 microKelvin.
Credit: NASA / WMAP Science Team
WMAP # 121238
Image Caption
9 year WMAP image of background cosmic radiation (2012)
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A map of cosmic background radiation from when the universe was around 380,000 years old. The colours are artificial and show tiny temperature variations.