The world's most powerful telescope which can produce images 10 times sharper than Nasa's Hubble is becoming operational in Chile's Atacama desert.
The Alma telescope, which promises to probe deeper into space than ever before, comprises 50 antennae arranged over a 10km (6.2-mile) radius.
The Alma telescope, which promises to probe deeper into space than ever before, comprises 50 antennae arranged over a 10km (6.2-mile) radius.















