August - APEX stands sentry on Chajnantor

The Atacama Pathfinder Experiment (APEX) telescope looks skyward during a bright, moonlit night on Chajnantor, one of the high- est and driest observatory sites in the world. The beautiful sky is a testament to the excel- lent conditions offered by this site, which is also home to the ALMA observatory. On the left shine the stars in the tail of the constella- tion Scorpius (The Scorpion). In the centre, Sagittarius (The Archer) looms over APEX’s dish.


ESO/B. Tafreshi (

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