BIG SKY An all-sky map of the cosmic microwave background from the Planck space telescope shows subtle temperature fluctuations (red is warmer, blue cooler) that were present 380,000 years after the Big Bang.
Planck Collaboration/ESA
BIG SKY An all-sky map of the cosmic microwave background from the Planck space telescope shows subtle temperature fluctuations (red is warmer, blue cooler) that were present 380,000 years after the Big Bang.
Planck Collaboration/ESA