(Xinhua,
June 24, 2012) China's
manned deep-sea submersible Jiaolong prepares to be put into water to make a
fourth dive into the sea at the Mariana Trench on June 24, 2012. China's manned
submersible, Jiaolong, made its fourth dive in the Mariana Trench on Sunday
morning to attempt the world's first 7,000-meter dive below the surface of the
Pacific Ocean. [Xinhua]