Spacex recycling slogan

Recently, the video of Musk's SpaceX launching a recycling rocket is very hot. I watched it several times, and the more I watched it, the more excited I became. I can't help but sigh the greatness of Musk and the greatness of mankind! This technology has been successfully developed in China. It has been less than 70 years since humans flew out of the earth into space. In these 70 years, the technology of exploring space has developed rapidly. This process is wonderful and hard, let's review it together!

Conquering space is one of the greatest achievements of mankind in the 20th century. The space age started from 1957 to 65438+1October 4. The former Soviet Union launched an artificial earth satellite named "Putnik 1". It was launched by a rocket with great thrust. The rocket fell off and the satellite continued to run and entered the scheduled orbit. A month later, "Putnik II" took off with its first life-a dog named Leica-into space, but unfortunately, "Leica" failed to return to Earth. 1 961April, the brave former Soviet astronaut yuri gagarin took off in "Orient1"and became the first person in the world to go into space!

"Dongfang 1" took Gagarin around the earth and entered satellite orbit. When returning home, Gagarin's spaceship crashed into a Russian farmland. A few months later, American astronaut Allen? Shepard also went into space. 1963, tereshkova became the first woman to go into space. 1965, leonov of the former Soviet Union became the first person to walk in space. He was tied together by ropes and floated outside the manned spaceship 10 minutes.

In the early days of space exploration, the cold war competition between the United States and the former Soviet Union promoted the rapid development of space exploration. Both sides want to beat each other in the "space race". In the 1960s and 1970s, both sides wanted to achieve more achievements. They sent probes to the same planet (including Venus and Mars), and they also sent probes to the moon. 1in July, 969, the United States was at the forefront of the competition because of its successful landing on the moon. The former Soviet Union then established the first space station, Mir Space Station, and retired after serving for 13 years.

In the late 20th century, with the end of the Cold War, space exploration turned from Soviet-American competition to global cooperation. Scientists from the United States and Russia are cooperating with scientists from Canada, Europe and Japan to gradually build a larger international space station. At present, the most advanced space station should be the Tiangong in China!

Space exploration can be divided into unmanned or manned exploration. Unmanned detectors are cheaper, safer and faster than manned detectors, and can perform more dangerous tasks. Unmanned probes may be launched into Saturn's atmosphere or the edge of the solar system.

So far, unmanned probes have visited most of the planets in the solar system. They have landed on Mars and Saturn and sent back a lot of information about these planets. Unmanned detectors can't get all-round data like human observers, and they can't respond in time when they encounter difficulties.

Manned spacecraft have landed on the moon, but it is impossible to send humans to Mars or beyond. Our current scientific level is not enough to support long distances, which is also a great test for astronauts. However, scientists believe that humans can definitely land on Mars or even more distant planets in the near future.

Back in SpaceX, the advanced technology to explore the universe is developing rapidly. Its recoverable rocket is only a small part of space technology. What is even more shocking is in the future, in the future, in the minds of scientists!