The E-ELT gets ready for action (artist's impression)

This video shows an artist's impression of the European Extremely Large Telescope, the E-ELT. The protective dome is seen opening for a night observing the optical and infrared skies. The E-ELT is a revolutionary telescope with a 40-metre-class main mirror. When complete the telescope will be the world’s "biggest eye on the sky".

The design for the E-ELT shown here is preliminary.