âAstronomy is an ultimate expression of âpureâ science that has little immediate practical benefits,â Luis C. Ho, the director of the Kavli Institute for Astronomy and Astrophysics at Peking University, said by email. âIt is a luxury that only the most advanced economies enjoy.â
Chinaâs history of subjugation to the West in previous centuries reinforced the belief that scientific prowess is essential for any modern power. And studying the heavens was, after all, an area where China excelled in ancient times.
âNow weâre racing to catch up and want to recreate the glories of our ancestors by reviving our astronomy,â Zhang Chengmin, an astrophysicist at the National Astronomical Observatories of the Chinese Academy of Sciences, said in an interview. âChina isnât just an economic power; it is also becoming a scientific power.â
Astronomy, however, also depends on international cooperation. Despite Chinese hoopla about the telescope as homegrown technology, it also uses foreign equipment. The receiver, a crucial part, is Australian technology. Foreign scientists will be invited to work on research, and many of the telescopeâs big projects will draw on international collaboration.
âRadio astronomy is a very international field,â said Douglas Bock, a senior astronomer at Australiaâs Commonwealth Scientific and Industrial Research Organization, which built the receiver. âThe science collaborations naturally lead to many deeper technical collaborations on instrumentation and new telescopes.â
The soluble rock that covers this part of Guizhou has dissolved and eroded over eons into jutting hills with natural cavities. The spectacular terrain has also trapped residents in hard, isolated lives, farming corn and honeysuckle in the narrow strips of land among the hills.
But the terrain also offers a nearly ideal environment for a radio telescope. The population is sparse, and the hills are a natural barrier against radio noise and wind that could upset the delicate instruments needed to catch whispers from deep in space.
Even so, not all of the thousands of people being moved for the telescope want to go.
âIâve lived here all my life. My ancestors arrived here in the Qing dynasty over 200 years ago,â said Mr. Huang, the carpenter, who lives in Miaoping village. He said local villagers had complained that the housing they had been offered in a town down the road was poorly built. âWe donât want to leave, but the government says itâs for the good of the country.â
In return for the farmersâ pain, Chinese scientists will have a vast and powerful scientific instrument that they hope will make breakthroughs in some of the biggest mysteries of the universe.
âWeâre definitely aiming for innovative results as quickly as possible, unearthing its potential for Nobel Prize-grade discoveries,â Di Li, a leading scientist on the FAST project, told Xinhua, the state news agency, last year.
The telescope is part of an array of projects to raise Chinaâs standing as a scientific power through big, expensive feats of scientific exploration.
The space program aims to send an astronaut to the moon by 2025 or later and to land an unmanned vehicle on Mars in 2020. Chinese scientists plan to build the worldâs biggest particle accelerator. And there may be more radio telescopes, including in Tibet.
Using the new reach of the telescope in Guizhou, astronomers hope to better measure the distribution of neutral hydrogen atoms, like a telltale cosmic dust.
âPrevious research could only tell us that the universe is expanding,â Zhang Tongjie, a professor of cosmology at Beijing Normal University who plans to use the telescope, said in an interview.
If the telescope can be used to survey electromagnetic radiation from neutral hydrogen, he said, Chinese scientists would be well positioned to gain a much more accurate grasp of how fast the universe is expanding. âThat would be very significant,â he said.
Astronomers also hope to use the telescope to locate thousands more pulsars, the highly magnetized neutron stars that rotate, creating a metronome-like pulse that is a boon to measurements. By better measuring pulsars, and more of them, the telescope could open up a new way to explore the long-elusive gravitational waves predicted by Einsteinâs general theory of relativity.
Only early this year, an international team of scientists announced that they had captured evidence of gravitational waves. But the pulsar research would offer another way to make progress, perhaps confirming and refining that discovery.
âThis telescope offers the first time that China will have an unsurpassed opportunity to be at the international forefront of deep space exploration,â said Mr. Zhang, the astrophysicist.
Most alluring to the public may be the search for extraterrestrial civilizations, from signals that accidentally reach Earth or from messages sent here. The new telescope opens up the possibility that the first human leader to respond to a message from alien life could be President Xi Jinping of China.
But alien life is not a focus for now. Initially, the scientists running the telescope will scan the skies to test and calibrate their equipment, and researchers involved in the international effort to explore for intelligent life on distant planets will âpiggybackâ to sift for signals, Dan Werthimer, the chief scientist of the SETI Research Center at the University of California, Berkeley, which engages in the search for extraterrestrial intelligence, said in a telephone interview.
âTheyâre very keen to collaborate,â he said. âWe can use the telescope at the same time that theyâre doing more traditional astronomy to look for E.T.â
But astronomers said it could take years before the telescope in Guizhou starts making breakthroughs. It could take a year or two for the scientists and technicians to tweak and debug the complex equipment so that the telescope can work at full strength, they said.
âIt would be premature to want to catch up with international standards in one jump,â said Wu Xuebing, a professor of astrophysics at Peking University. âA countryâs scientific advancement requires a certain accumulation of time.â