Most precise snapshot of the universe unveiled
Planck telescope fine-tunes numbers that define the cosmos
![all-sky map of the cosmic microwave background](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/12/cc_cmb2014_free.jpg?fit=860%2C460&ssl=1)
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