Science News Roundup: Chinese astronauts return to earth after 'successful' six-month mission

Following is a summary of current science news briefs.

Chinese astronauts return to earth after 'successful' six-month mission

Three Chinese astronauts landed back on earth on Sunday on board the re-entry capsule of the Shenzhou-14 spacecraft, state broadcaster CCTV reported, bringing to an end a six-month mission on China's space station. The three astronauts - commander Chen Dong and teammates Liu Yang and Cai Xuzhe - who had been overseeing the final, pivotal period of construction at the space station, which was completed in November, all said they were feeling well after landing in audio aired on CCTV.