⏪ Back in time. Hubble deep fields are like time machines that allow us to peer back in time to some of the earliest moments in our universe. Because the light we see here took billions of years to reach us, we see these galaxies as they were billions of years ago. This “fly-through” of the Hubble Ultra Deep Field represents one of the deepest views of our cosmos. Hubble’s spectacular technology reveals this breathtaking portrait featuring galaxies of all shapes, sizes, colors, and ages, includi

Ultra Deep Field: Looking into Space, 12 Billion Years Back in Time | Hubble FriendsofNASA.org: This six-minute visual exploration of the Hubble Ultra Deep Field showcases the characteristics and contents of this landmark observation, as well as its four-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 e