【正文】 highposition and highspeed resources to obtain, transmit and forward information, and achieved great benefits, such as the wide application of munication satellites and remote sensing satellites.　　On the other hand, with the rapid development of military spacecraft, various new space weapons such as military satellites, manned spacecraft, ballistic missiles and anti ballistic missiles have formed an integrated space battlefield military system and will play an important role in joint campaigns. As we all know, without a solid national defense, it is difficult to guarantee our happy life.　　Without today’s investment, there will be no tomorrow. The progress of the space industry will drive the development of relevant industries. The application of space technology will have a significant impact on mankind. Only with the continuous progress of society and the continuous development of science and technology, our life will be more and more beautiful.　　The three astronauts who have lived in space for six months are finally going home! The news has bee the focus of attention. Through the live video, I not only enjoyed the successful landing of Shenzhou 13, but also learned a lot about aerospace.　　When they are about to leave the “black barrier area” and enter the atmosphere, although there will be great friction, and the temperature will reach about 1000 degrees, with the support of science and technology and wearing space suits, astronauts can maintain their physical fort. We can’t help feeling for the power of science and technology.　　When something like a parachute opens, the stone in my heart also falls. Because it symbolizes that astronauts have passed through the atmosphere into the earth, and it also symbolizes that they can land safely. After continuously decreasing the speed, the astronauts are getting closer and closer to the ground. Soon after the excess fuel was released, the good news of the safe landing of Shenzhou 13 came. What an exciting thing it is!　　Although I didn’t have the chance to go into space like them, my heart was affected when I saw Chinese astronauts go into space one after another. After all, this is a feat to prove China’s strength!　　The three astronauts who have lived in space for six months are finally going home! The news has bee the focus of attention. Through the live video, I not only enjoyed the successful landing of Shenzhou 13, but also learned a lot about aerospace.　　When they are about to leave the “black barrier area” and enter the atmosphere, although there will be great friction, and the temperature wi