月球是地球仅有的一颗天然卫星,它距地球384400千米,质量仅为地球的1/81。它不断地从地球“偷”能量,并以每年3.8厘米的速度从地球身边悄悄溜走。1959年,苏联的“月球-2”飞行器第一次拜访了月球。同年,“月球-3”对月亮背面进行了40分钟拍照,揭开了月亮背面的谜团。1969年7月20日,尼尔·阿姆斯特朗和埃德温·奥尔德林乘坐“阿波罗-11”号飞船成功登月,实现了人类登月的梦想。 The moon is the only natural satellite on the earth. It is 384,400 kilometers from the earth and its mass is only 1/81 of the earth. It constantly “steals” energy from the earth and slips away from the earth at an annual rate of 3.8 centimeters. In 1959, the first “lunar -2” aircraft of the Soviet Union visited the moon. In the same year, “Moon-3” took a 40-minute photograph of the back of the moon and uncovered the mystery behind the moon. On July 20, 1969, Neil Armstrong and Edwin Aldrin took the “Apollo-11” spacecraft to the moon successfully, realizing the dream of mankind’s landing on the moon.