By scrutinising the Hubble Ultra Deep field - the deepest image of the sky ever made - the NASA/ESA Hubble Space Telescope and the NASA Spitzer Space Telescope have joined forces to discover nine of the smallest, faintest, most compact galaxies ever observed in the distant Universe.

Credit:

ESA/Hubble (M. Kornmesser & L. L. Christensen), Hubble Ultra Deep Field and GOODS Flythroughs: NASA, ESA and F. Summers (STScI)

Narration:
Dr. Robert Fosbury

Special Guest:
Dr. Martin Kümmel

Design:
Martin Kornmesser

Web Technical Support:
Lars Holm Nielsen
Raquel Yumi Shida

Cinematographer:
Peter Rixner (www.perix.de)

Script:
Lars Lindberg Christensen

Director:
Lars Lindberg Christensen

Learn more at http://www.esa.int

This video has been released in the public domain by the ESA and all credit is to ESA for the production of this material.