根据文章第四段“The effort begins with the Space Sustainability Rating, a system that measures many aspects of launching agencies, such as crash preparedness, information sharing and future junk reductions.(这项工作从太空可持续性评级(Space Sustainability Rating)开始,这是一个衡量发射机构诸多方面的系统...
A语篇类型:说明文主题:太空垃圾 词数:300 难度:建议用时:7分钟In 1957, the Space Age began with the launch of Sputnik 1, the first man-made satellite. Since then, the number of objects humans have launched into the universe has risen to the thousands. As these objects complete their missions...
Sputnik 2: The First Animal in Orbit by Andrew J. LePage November 1997 The launching of Sputnik on the night of October 4, 1957 was virtually a total success. The only major malfunction was in the system that evenly empties the propellant tanks in the core and four boosters of the 8K71...
The replica was installed in 2007 to commemorate the 50th anniversary of Sputnik's first launching. NASA Buzz Aldrin salutes the U.S. flag. Aldrin and fellow astronaut Neil Armstrong became the first humans to land on the Moon on July 20, 1969. ...
October 4, 1957 is a date many Americans rememberas the day that changed America and the world. On that day, Russians ushered inthe Space Age with the launch of Sputnik, the world's first artificial satellite.The 183-pound satellite created mass hysteria overnight in the United Statesbecause...
The period 1956-1957 was a major turning point in every respect throughout the world and in China as well. It was marked by a succession of events of major importance, such as the launching of Sputnik, the censure of Stalin in the USSR, the Hungarian putsch, the development of the ...
On October 4, 1957, theSoviet Unionstunned everyone by launching the world's first artificial satellite,Sputnik 1.It was an event that galvanized the world and spurred the fledglingU.S. space effortinto high gear. No one who was alive at that time can forget the electricity of the moment ...
In 1957, the Soviet Union launched two Sputniks 表明他们拥有将炸弹运往美国的运载工具。 into orbit showing they had the vehicle to carry the bombs to the United States. 这引起了美国方面的恐惧和焦虑。 This caused fear and anxiety on the part of the United States. 美国在艾森豪威尔政府和肯尼迪...
Although never directly mentioned in its official motto, the National Aeronautics and Space Administration (NASA) was established as a direct result of the Soviet space program’s successful launching of Sputnik 1, the first man-made satellite, on October 4th, 1957. The U.S. Congress, worrying...
So the world's first satellite, Sputnik I, was launched in 1957, and in that year, there were only a total of three launch attempts. 世界上的第一颗卫星, 史普尼克一号 发射于1957年, 在那一年中,一共只有 三次发射尝试。 Decades later and dozens of countries from all around the world have...