Iran has launched its first home-built satellite into orbit using a homegrown rocket, in a move that is certain to set alarm bells ringing in the international community. "Dear Iranians, your children have put the first indigenous satellite into orbit," a jubilant President Mahmoud Ahmadinejad said in remarks broadcast on state television on Tuesday. "With this launch the Islamic Republic of Iran has officially achieved a presence in space." The launch -- which coincides with the 30th anniversary of the Islamic revolution -- comes as Iran remains at loggerheads with the international community over its controversial nuclear drive.