NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Kick-Off Ceremony of the Arecibo Observatory 50th Anniversary . ... Visit to AO of Hon. ... A Chinese delegation representing the FAST project visited the Arecibo Observatory facilities on December 8, 2011 and was received by Dr. Robert Kerr, Director and Principal Investigator, Dr. Juan F. Arratia, Deputy Director and Co-Principal Investigator, and Dr. Sixto Gonz†бlez, Director of the Atmospheric Science Division. ...