But it will mainly study the universe in infrared light.
VOA: special.2011.05.23
The image was discovered by the Wide-Field Infared Survey Explorer (WISE), which scans the night sky for lights intheinfrared range to discover more about different aspects of astronomical objects.
The light from the planet was detected ininfrared form by the Spitzer Space Telescope, which also detected the first light from another exoplanet, the gas giant HD 209458 b.