'American' tower near Concordia

The so-called American tower stands about a kilometre from Concordia Station in Antarctica and is 40 meters tall. It was built in 2003 by American universities to check satellite data but now houses many scientific instruments. 

The thin atmosphere near the South Pole and very few clouds make Concordia a unique place to study Earth’s climate and beyond.

ESA sponsors a research medical doctor each year to study the effects of living in isolation. The extreme cold, isolation, sensory deprivation and remoteness make living in Concordia similar to living on another planet.