Chinese students watch the making of a proportional rocket in the Euro Space Center in Luxembourg Province, some 130 kilometers southeast of Brussels, capital of Belgium, August 8, 2013. Opened in 1991, the Euro Space Center becomes a hot educational spot that enable visitors to explore the outer space through multimedia presentation and experiential practice. (Xinhua/Wang Xiaojun)

Chinese high-school students experience how astronauts get training in the Euro Space Center in Luxembourg Province, some 130 kilometers southeast of Brussels, capital of Belgium, August 8, 2013. Opened in 1991, the Euro Space Center becomes a hot educational spot that enable visitors to explore the outer space through multimedia presentation and experiential practice. (Xinhua/Wang Xiaojun)

A Chinese high-school student experience how human walks on the moon in the Euro Space Center in Luxembourg Province, some 130 kilometers southeast of Brussels, capital of Belgium, August 8, 2013. Opened in 1991, the Euro Space Center becomes a hot educational spot that enable visitors to explore the outer space through multimedia presentation and experiential practice. (Xinhua/Wang Xiaojun)

Two high school students experience in a simulator of former American space shuttle STS Endeavor in the Euro Space Center in Luxembourg Province, some 130 kilometers southeast of Brussels, capital of Belgium, August 8, 2013. Opened in 1991, the Euro Space Center becomes a hot educational spot that enable visitors to explore the outer space through multimedia presentation and experiential practice. (Xinhua/Wang Xiaojun)