NASA Hubble Ultra Deep Field Galaxies Key Ring

Astronomers using NASA's Hubble Space Telescope have assembled the most colourful deep space images ever captured. Combining the full range of colours available to Hubble, stretching all the way from ultraviolet to near-infrared light, the resulting image -- made from 841 orbits of telescope viewing time -- contains approximately 10,000 galaxies, extending back in time to within a few hundred million years of the big bang.