Abstract Trajectory design is an important part of research on crewed asteroid exploration.Firstly, combined with the basic condition and postulate of trajectory design,the trajectory model was built based on the Lambert theory.The validity of the model was verified through computer simulation. The trajectory model was used for the crewed exploration to asteroid 89136, and the trajectory design results were given.Secondly,different failure modes were considered,the abort trajectory and the characteristics were analyzed, and the ability of the explorer to return to the earth in an emergency was discussed.Finally, the related conclusions were drawn.
I finally had time to scan a few Chinese brochures from last month's Paris Le Bourget air show
Indeed, the head of the China National Space Administration (CNSA), Ma Xingrui, made very clear that China has invited other nations to join its space station program and "help other developing countries to put their astronauts in space."
Recently, China's first astronaut, Yang Liwei, extended an invitation to foreign space agencies to train crew members for flights on Shenzhou craft. Astronaut Liu Yang reiterated this offer at the Congress. The German space agency is already working with China, having flown experiments on the last Shenzhou mission, and France has also been in discussions with China on cooperation. The European Space Agency, according to Dr. Li, is considering cooperation in microgravity research, human physiology and space medicine, and astronaut selection.
I had not seen this pics beforehttp://bbs.miercn.com/201309/thread_224318_1_2.html
progress of the FAST 500 m radiotelescope, which may also have some use in deep space communication
since at least the early 2000s FAST is a single, Arecibo-like antenna
“The manned lunar landing has not yet secured approval from the national level authorities, but the research and development work is going on,” said Zhang.