Explore the COSMOS
Appropriately named the COSMOS field (short for Cosmic Evolution Survey), this patch of sky is populated by millions of galaxies. Even the smallest dots in this image are galaxies, some up to 12 billion light-years away. In fact, the brightest objects in the field are more than ten thousand times fainter than what you can see with the naked eye.
The picture is a combination of infrared data from Spitzer (red) and visible-light data (blue and green) from Japan’s Subaru telescope atop Mauna Kea in Hawaii and is part of the SPLASH (Spitzer large area survey with Hyper-Suprime-Cam) project.
Learn more about Spitzer’s SPLASH Project