The world's biggest deep-sea drill soars at the center of the CHIKYU, a high-tech scientific research ship, at Yokohama port, south of Tokyo, Dec. 15, 2005. The mammoth drill is the key to CHIKYU's research which operators say is capable of boring 7,000 meters (nearly 4.5 miles) into the ocean floor, far deeper than the 2,111-meter (1.3-mile) hole made by the U.S.'s drilling vessel, the 20-year-old Joides Resolution. The foreground is the ship's heliport. CHIKYU is the Japanese word for 'Earth.' (AP Photo/Katsumi Kasahara)