The writers also answered questions raised by the pupils. The most popular question was: "What do we do now to become scientists like you?"

"If you want to be an astronaut or astronautic scientist, stay healthy and do your homework to become educated," answered Zhou Binghong, one of the writers who is also a researcher at the China Academy of Space Technology, pointing out that the line between astronauts and astronautic scientists is vague as these professions need extensive knowledge to travel to space for on-site experiences. "Health and knowledge are the most important factors for both professions, which are becoming increasingly popular at a lower cost."

Wang Dapeng, a researcher at the China Research Institute for Science Popularization, encourages the idea of recruiting scientists to write their stories. "We need more scientific researchers to tell stories of their research fields. Science in the form of stories is more digestible to children because reading is not only for acquiring knowledge but also for enriching lives and improving oneself."

Li Hui, deputy Party secretary and vice-chairperson of the board of Hunan Publishing Investment Holding Group, said that pop science works play an irreplaceable role in cultivating children's scientific literacy and stimulating their innovative potential. The publishing group follows the national innovation-driven development strategy and is committed to publishing excellent popular science works and enhancing scientific literacy.

"How many galaxies are there in the universe besides ours?" asked a 7-year-old at the end of the seminar.

"So far, we know of about 100 billion," Zhou answered, "which means for each of the 8 billion people on Earth, there is an average of a dozen galaxies. The coming generations have a mission to work harder on space science so that one day we can travel at the speed of light into the deep universe to explore them.

"Let's find our own galaxies," Zhou said.