英语作文yearsago

Fifty years ago, on October 4, 1957, the former Soviet Union launched the first man-made satellite into Earth's orbit, called Sputnik, which began a space race with the United States. While the intense competition that marked the early years of space no longer exists, experts agree Sputnik forever changed the perception of outer space and its possibilities.With a diameter of 58 centimeters and weighing about 83 kilograms, Sputnik was about the size of a large, silvery pumpkin, with strange-looking antennae protruding from it. And then there was the famous sound picked up by radio operators around the world as Sputnik orbited the earth.John Logsdon is director of the space policy institute at George Washington University in Washington. On October 4, 1957, when Sputnik was launched, Logston was a 19-year-old college student who was more interested in events closer to home. But Logston's career path would soon be determined, as he got caught up in the excitement of the space race. Concerned about Soviet gains, the U.S. Congress in 1958 passed a law that led to the formation of the U.S. space agency NASA. On April 12, 1961, America's worst fears were realized when Soviet cosmonaut Yuri Gagarin became the first person to orbit the Earth, beating the United States with a man in space. One month later, in a now famous speech, President John F. Kennedy signaled the beginning of the space race with the Soviets."Recognizing the head start obtained by the Soviets, with their large rocket engines, which gives them many months of lead time, and recognizing the likelihood that they will exploit this lead for some time to come, in still more impressive successes, we nevertheless are required to make new efforts on our own," 答案补充 Today, Russians, Americans and Europeans work in collaboration on the International Space Station, an orbiting scientific outpost where research is carried out in the weightlessness of outer space. The orbiting Hubble Space Telescope,launched in 1990, has beamed back hundreds-of-thousands of pictures of distant galaxies,giving astronomers unprecedented views of the Universe. The successor to Hubble will be the James Webb Space Telescope,named after the man who organized the Apollo program.

50 years ago, Shenzhen is a quiet town, had not a lot of people, there are a lot of people. Previously only low bungalow, now there are buildings.