Collage • March 21, 2013
This graphic illustrates the evolution of satellites designed to measure ancient light leftover from the big bang that created our universe 13.8 billion years ago.
The Planck mission has imaged the oldest light in our universe, called the cosmic microwave background, with unprecedented precision.
Collage • April 26, 2010
A side by side view of the Orion Nebula as seen by Spitzer Space Telescope and Planck.
