Alma radio telescope: How to move a giant antenna


The world's most powerful radio telescope has begun scientific operation.

The Alma (Atacama Large Millimetre/Submillimetre Array) telescope array, high up in Chile's Atacama desert, has commenced its quest to view the formation of the first stars in the Universe.

Building it has also been a remarkable feat of engineering.

Science correspondent Pallab Ghosh has been speaking to one of the leading engineers involved in the project, Pascal Martinez, about the technical challenges involved.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.