Deep sea dives the real achievement

The Shenzhou IX spacecraft is expected to return to Earth soon after a successful manual docking with the

Tiangong 1 orbiting module. And on Wednesday, the manned submersible Jiaolong, conducted its fifth dive in the Mariana Trench to a depth of more than 7,000 meters.

These two high-tech achievements have attracted worldwide attention and reminded many Chinese people of some lines in a poem written by Chairman Mao Zedong in the 1960s: "We can clasp the moon in the Ninth Heaven, and seize turtles deep down in the Five Seas."