Wu Weiren, member of the Standing Committee of the CPPCC National Committee and chief designer of China’s lunar exploration project, said recently that China plans to realize the Mars sampling and return mission by 2030. This project is much more difficult than the lunar sampling and return. The first problem to be solved is to develop a carrier rocket with greater thrust. Subsequently, China is also preparing to carry out marginal exploration of the solar system. “The sun is about 150 millio...