See the birth of stars and planets
ALMA is the world's largest radio telescope that can see stars and planets being born millions of light-years away.
Hear from the people who work there, in one of the highest, driest places on Earth, 5,000m up in Chile's Atacama Desert.
There's more on ALMA in Stargazing on the BBC World Service.
31 Aug 2017
- From the section Science & Environment