The two frequencies of light generated by the lasers cause the atoms to oscillate between energy states. But atoms are also distracted by gravity. By launching its clock into space, the Chinese clock will avoid the negative pull exerted by gravity, increasing the accuracy of the clock ...
Zhou Jianping, chief designer of China's manned space programme, told Xinhua that the controlled re-entry marked the successful completion of all the tasks in the space lab phase of the programme. Efforts are now being made to step up preparations for constructing China's space station, Xinhua...