These images are from a Hubble Space Telescope survey to find Kuiper Belt objects (KBOs) in support of NASA's New Horizons mission to Pluto. The Kuiper Belt is a debris field of icy bodies left over from the solar system's formation billion years ago.
This image was obtained with the wide-field view of the Mosaic II camera on the Blanco 4-meter telescope at Cerro Tololo Interamerican Observatory on January 11th, 2012. It shows a portion of the giant Monceros R2 molecular cloud. It is a location of massive star formation, particularly in the location of the bright red nebula at the right center of the image.
A fading Comet Holmes lies at the top edge of this colorful skyview. The reddish emission nebula below it is NGC also known as the California Nebula for its resemblance to the outline of the state on the US west coast.