ESO Special: Changing Views
Date- 5th June 12 Source- http://www.eso.org/public/videos/archive/category/esocast/ 'Leading up to ESO's 50th anniversary in October 2012, we are releasing eight special ESOcasts, each a chapter from the movie Europe to the Stars -- ESO's First 50 Years of Exploring the Southern Sky. ESOcast 44 — entitled Changing Views — is the fourth special episode of this series. Since its birth, fifty years ago, ESO has helped to improve our knowledge of the Universe by means of successive generations of powerful optical ground-based telescopes. But there are other ways to collect the light from distant objects. In this episode, we discover how ESO has helped astronomers to explore the Universe at longer wavelengths, such as the infrared and radio regimes.'