English: Full-sky map by the Wilkinson Microwave Anisotropy Probe (WMAP) of the oldest light in the universe: a "baby picture" of the universe. Colors indicate "warmer" (red) and "cooler" (blue) spots. The oval shape is a projection to display the whole sky, similar to the way the globe of the Earth can be represented as an oval.

The microwave light captured in this picture is from 379,000 years after the Big Bang, over 13 billion years ago: the equivalent of taking a picture of an 80-year-old person on the day of its birth.

First year (2003) version.