China’s manned deep-sea submersible Jiaolong is put into water to make a second dive into the sea at the Mariana Trench on June 19, 2012. The Jiaolong made a second dive into the Mariana Trench Tuesday, setting a new national record by reaching a depth of 6,908 meters below sea level. The Jiaolong will attempt four more dives, aiming to move deeper and deeper to pursue the goal of reaching 7,000 meters below the sea level between mid-June and early July. (Xinhua/Luo Sha)

China’s manned deep-sea submersible Jiaolong is put into water to make a second dive into the sea at the Marian Trench on June 19, 2012. The Jiaolong plans to try six dives, aiming to move deeper and deeper toward the 7,000-meter target between mid-June and early-July. (Xinhua/Luo Sha)

A monitor screen shows the depth of China’s manned deep-sea submersible Jiaolong reached at the Marian Trench on June 19, 2012. The Jiaolong made a second dive into the blue ocean of Marian Trench Tuesday morning, as part of a bid to go down as deep as 7,000 meters. (Xinhua/Luo Sha)