What Is This?
My guess: An alien beacon recently discovered at Llano Chajnantor, 16,450-feet high in the Chilean Atacama desert, 50 kilometers to the east of San Pedro de Atacama. In reality, its name is APEX, and it’s a galactic vacuum cleaner. APEX—the Atacama Pathfinder EXperiment—is a collaboration between Max Planck Institut für Radioastronomie, Onsala Space Observatory and…