NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... IMPORTANT MESSAGE ] €а The Angel Ramos Foundation Science and Visitor Center of the Arecibo Observatory, has temporarily closed for the public due to remodeling of its facilities, which will expand its services to local and international visitors.€а Work is expected to finish in early 2016.€а The investigations and observations done by scientists using the radio telescope will not be affected and will be conducted as usual. €а . ...