Final panel added to China's FAST radio telescope
July 7, 2016, 2:40:03 CEST | Wikinews

Photo of the construction of FAST, 2015 (Image: Psr1909.)
On Sunday China announced the final panel attached to its telescope named Five hundred meter Aperture Spherical Telescope (FAST). This piece marks the end of a five-year-long US$180 million (CNY¥1.2 billion) construction project.

FAST comprises about 4,500 panels and spans a diameter of 500 meters (about 1640 feet). The telescope is part of a series of ventures into space exploration by China, including planning another robotic Moon mission and creating a Chinese space station, with its core module set to be launched into space in 2018. With the country's founding centenary coming in 2049, Chinese President Xi Jinping said during a Beijing conference, "great scientific and technological capacity is a must for China to be strong".

In order to achieve optimal electromagnetic performance for FAST with minimal signal interference, it was built in the South China Karst. This ultimately forced the relocation of about 9,100 inhabitants within a 3.1-mile (5km) radius of the telescope. The residents received about US$1,800 (CNY¥12,000) in reimbursement, with those experiencing difficulties with housing receiving about US$1,500 (CNY¥10,000) in extra compensation. The Chinese government supports the resettlement, with senior party official Li Yuecheng saying the relocation would provide a "sound electromagnetic wave environment".

The telescope is now the largest-diameter single-dish radio telescope. It took the spot from the 305-meter diameter Arecibo Observatory telescope in Puerto Rico. Russia's RATAN-600 multi-element radio telescope has a diameter of 576 meters. This adds to China's record-defying achievements; it contains the world's largest bridge and the world's longest wall, the Great Wall of China.

The telescope is set to be ready for use in September. Its possible uses include exploration for pulsars, a special type of neutron stars detected through their emission of radio pulses. Scientists have also described the telescope's potential to explore alien civilization, with NAO Radio Astronomy Technology Laboratory director Peng Bo saying FAST's "potential to discover an alien civilization will be 5 to 10 times that of current equipment, as it can see farther and darker planets".

Source: Wikinews
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