Best Map Ever of the Universe
Credit: ESA and the Planck Collaboration
Published: March 21, 2013
This map shows the oldest light in our universe, as detected with the greatest precision yet by ESA's (European Space Agency's) Planck mission. The ancient light, called the cosmic microwave background, was imprinted on the sky when the universe was 370,000 years old.
More information: https://www.nasa.gov/mission_pages/planck/multimedia/pia16873.html