Chile

Threat to the world’s darkest and clearest skies

Paranal Observatory is the world’s top site for astronomy thanks to its exceptionally steady and stable atmosphere – it has what astronomers call excellent seeing conditions or very low “twinkling” of astronomical objects caused by turbulence in Earth’s atmosphere. With INNA, the best seeing conditions could deteriorate by up to 40%, in particular due to the air turbulence caused by the project’s wind turbines.