The radio telescope of 17 where to worldwide 13 countries & the area which include Japan it was tied with high-speed Internet, the hypothetical telescope of maximum scale in history was made and the celestial body the international joint experiment which is observed started on the 15th.  As for this large-scale observation, the European VLBI combined research mechanism called. Radio telescope [areshibo] of world's largest aperture 305 meter (Puerto Rico) other things, European each country, the American, China and Australia etc radio telescope participates. Information communication research mechanism Kashima space technical center (Ibaraki prefecture deer 嶋 city) the dish antenna of aperture 34 meter joins from Japan.  Experiment Japanese time 15th to 16 days all the way from 5 o'clock in the afternoon, the black hole which is direction of the Aries simultaneously observation. The data which is obtained is processed being sent by the Dutch processing center in real time. You say that by the fact that the signal which the respective radio telescope receives is synthesized, with high resolution structure of radio source can be made clear. The Seki door defense senior researcher expects “if in the future to continue international cooperation, you can elucidate space early Milky Way evolution process,”.  Experiment commemorated the fact that Galileo Galilei 400 years ago begins observation with the telescope, in Paris started on the 15th one of events of the commencement ceremony “of worldwide astronomical year 2009”.