Atacama Pathfinder Experiment
= Atacama Pathfinder Experiment
{wiki=Atacama_Pathfinder_Experiment}
The Atacama Pathfinder Experiment (APEX) is a radio telescope located in the Atacama Desert of Chile. It is known for its high-altitude location, which provides excellent observing conditions due to the thin atmosphere and low levels of light pollution. APEX operates primarily in the millimeter and submillimeter wavelength range, making it particularly effective for studying cold gas and dust in space.