antennas
Media playback is unsupported on your device
Video

World's most powerful telescope begins scientific operation

Astronomers in Chile have been building the world's most powerful telescope high up in the Atacama desert.

The Alma (Atacama Large Millimeter/submillimeter Array) telescope facility involves the construction of 66 giant antennas on top of a 5,000m-high plateau.

Costing more than a billion US dollars, the Alma will seek to unravel the mysteries behind the formation of the first stars in the Universe.

Pallab Ghosh reports.

Go to next video: Building a high altitude telescope