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Five months before my birth, the Soviet Union launched Sputnik, the first artificial satellite in Earth's orbit. In 1969, at the age of 11, I watched black-and-white images of American astronaut Neil Armstrong on the surface of the moon. It was a huge progress in a remarkably short time.
Space exploration continues to develop with missions to Mars and Venus, placing space stations and telescopes in orbit and sending probes to the confines of the solar system. In fact, there has been so much progress that we sometimes take it for granted. We lost our sense of fear. This is unfortunate because there have been a number of recent developments that deserve to be appreciated.
For example, China has become the first country to overcome the technical difficulties of landing a spacecraft off the moon – not the dark side, as Pink Floyd describes it. The hidden face of the moon receives sunlight regularly as it revolves around the Earth, while the Earth itself revolves around the sun. Thus, when the moon is full to our eyes, the far side is dark; When it comes to a new moon – in the shadow of our eyes – the sun hits the other side.
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