Have you ever wondered why some telescopes are launched into space while others are built on remote mountain tops? What is actually the best for astronomy? Here we provide a ringside view of the fight for the elusive photons from deep space - is it a battle of the telescope giants?

Credit: ESA/Hubble (M. Kornmesser, L. L. Christensen & R. Shida), Luis Calçada, ESO, Spitzer Space Telescope, Keck Observatory, Subaru Observatory

Narration:
Dr. Robert Fosbury

Design:
Martin Kornmesser

Web Technical Support:
Lars Holm Nielsen
Raquel Yumi Shida

Cinematographer:
Peter Rixner (www.perix.de)

Script:
Raquel Yumi Shida
Lars Lindberg Christensen
Ana Margarida Lopes

Executive Producers:
Raquel Yumi Shida
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.