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laser-ranging test;Queqiao;Magpie Bridge;relay satellite

China to Conduct Record Laser-ranging Test[May 22, 2018]

Chinese scientists are to conduct a laser-ranging test between the relay satellite of the Chang'e-4 lunar probe and an observatory on the ground, which might help lay the foundation for space-based gravitational wave detection. The relay satellite Queqiao, or Magpie Bridge, which was launched Monday, will fly to a halo orbit around the second Lagrangian point (L2) of the Earth-Moon system. It will be a communication link between controllers on Earth and the Chang'e-4 lunar probe, which is expected to soft-land on the far side of the Moon at the end of this year.

lethal virus;Global Virome Project;disease vector;virus

China to Help ID Unknown Lethal Viruses[May 22, 2018]

China will help lead a project to identify unknown viruses from wildlife to better prepare humans for major epidemics-if not global pandemics. The project is to be launched this year, according to one of the country's top health officials. The Global Virome Project will start in China and Thailand with field work to collect samples from wild animals and analyze the viruses detected.

exascale supercomputer;National Supercomputer Center

China Unveils Sample Machine for New-generation Exascale Supercomputer[May 21, 2018]

The National Supercomputer Center in Tianjin unveiled a sample machine for the new-generation exascale supercomputer at the second World Intelligence Congress. It is the first time the machine, which has three sets of equipment, each about two meters high, was on public view. The sample machine will be a test for the computing power of the Tianhe-3 supercomputer, which is expected to be ready in 2020.

OS-X suborbital rocket;private rocket;OneSpace;rocket

Country's First Private Rocket Roars into Sky[May 21, 2018]

China's first carrier rocket designed and built by a private enterprise was launched on Thursday morning from a test base in northwestern China. The OS-X suborbital rocket, developed and made by OneSpace Technology in Beijing, blasted off at 7:33 a.m. It flew 306 seconds and traveled 273 kilometers through the atmosphere before falling back to the ground, the company said. The company said the craft adopted several instruments that were new to Chinese rockets, such as the drag-mitigating pole and built-in communications devices.

mobile communication satellite;satellite system;Tiantong-1 01;satphone system;mobile communication;communication satellite

China Officially Starts Its Own Mobile Communication Satellite Service[May 21, 2018]

China has finally started its own mobile satellite phone service two years after launching its Tiantong-1 01 mobile communications satellite into orbit. This marks China's first satphone system which will help the country eliminate their dependence on foreign mobile communications satellites. In addition, China also unveiled its first all-mode satellite mobile phone. The phone can be used as an ordinary phone in cities, but can also be turned to satellite mode in places with poor connection.

photonic quantum chip;analog quantum computing;quantum communication

Chinese Scientists Develop a Photonic Quantum Chip for Boosting Analog Quantum Computing[May 21, 2018]

Chinese scientists demonstrated the first two-dimensional quantum walks of single photons in real spatial space, which may provide a powerful platform to boost analog quantum computing. They reported in a paper published on Friday in the journal Science Advances a three-dimensional photonic chip with a scale up to 49-multiply-49 nodes, by using a technique called femtosecond direct writing.

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