HONG KONG: Aug. 11, 2012 — Primary and secondary school students attend a question and answer session with the astronauts of the Tiangong-1/Shenzhou-9 Manned Space Docking and Rendezvous Mission in Hong Kong Saturday, Aug. 11, 2012. (Photo by JUSTIN CHIN)

HONG KONG: Aug. 11, 2012 — Primary and secondary school students attend a question and answer session with the astronauts of the Tiangong-1/Shenzhou-9 Manned Space Docking and Rendezvous Mission in Hong Kong Saturday, Aug. 11, 2012. (Photo by JUSTIN CHIN)