The sky can be thought of as a sphere that surrounds us in three dimensions.
To make a map of the sky, astronomers project it into two dimensions.
In the mosaic, the Milky Way Galaxy runs horizontally across this map.
Three of the four wavelengths surveyed by WISE were used to create this image.
The colors used in this image represent specific wavelengths of infrared light.
WISE observations have led to numerous discoveries, including the elusive, coolest class of stars.
Astronomers hunted for these failed stars, called Y-dwarfs, for more than a decade.
NASA’s websitevia [Fast Co Design]
