Visitors look at photos on display at the "China's First Spacewalk Mission" exhibition at the Hong Kong Science Museum on Saturday, December 6, 2008. Three Chinese astronauts opened the exhibition, which gives local citizens a glimpse of their space journey. [Xinhua Photo]

Visitors look at displays at the spacewalk mission exhibition at the Hong Kong Science Museum on Saturday, December 6, 2008. [Xinhua Photo]

(Xinhua News Agency December 7, 2008)