Ultra Deep Field: Looking Out into Space, Looking Back into Time

This six-minute visual exploration of the Hubble Ultra Deep Field showcases the characteristics and contents of this landmark observation, as well as its three-dimensional nature across both space and time. In particular, galaxies are seen to more than 12 billion light-years away / 12 billion years ago, allowing astronomers to trace the development of galaxies across cosmic time. A deep field is a long exposure on a small field of view to observe the faintest objects possible. The Ultra Deep Field (UDF) re