Sputnik 1 (/ ˈ s p ʌ t n ɪ k, ˈ s p ʊ t n ɪ k /, Russian: Спутник-1, Satellite 1), sometimes referred to as simply Sputnik, was the first artificial Earth satellite. It was launched into an elliptical low Earth orbit by the Soviet Union on 4 October 1957 as part of the Soviet space program.

斯普特尼克1号（Sputnik-1）又称人造地球卫星1号，是苏联研制发射的第一颗人造地球卫星，其用途是通过向地球发出信号来提示太空中的气压和温度变化。

History changed on October 4, 1957, when the Soviet Union successfully launched Sputnik I. The world's first artificial satellite was about the size of a beach ball (58 cm.or 22.8 inches in diameter), weighed only 83.6 kg. or 183.9 pounds, and took about 98 minutes to …

6 天之前 · Sputnik 1, the first artificial satellite launched, was a 83.6-kg (184-pound) capsule. It achieved an Earth orbit with an apogee (farthest point from Earth) of 940 km (584 miles) and a perigee (nearest point) of 230 km (143 miles), circling Earth every 96 minutes and remaining in orbit until January 4, 1958, when it fell back and burned in ...

The Sputnik 1 spacecraft was the first artificial satellite successfully placed in orbit around the Earth and was launched from Baikonur Cosmodrome at Tyuratam (370 km southwest of the small town of Baikonur) in Kazakhstan, then part of the former Soviet Union.

On Oct. 4, 1957, Sputnik 1 successfully launched and entered Earth's orbit. Thus, began the space age. The successful launch shocked the world, giving the former Soviet Union the distinction of putting the first human-made object into space. The word 'Sputnik' originally meant 'fellow traveler,' but has become synonymous with 'satellite.'

On Oct. 4, 1957, the Soviet Union inaugurated the Space Age with the launch of Sputnik, the world’s first artificial satellite. Launched as a contribution to the International Geophysical Year (IGY), Sputnik weighed 184 pounds and orbited the Earth every 90 minutes, sending out a signal that amateur radio operators around the world could monitor.

Sputnik 1 was the first artificial satellite to go around the Earth. [2] [3] It was made by the Soviet Union. [2] It was launched on 4 October 1957 at Baikonur Cosmodrome. [2] It orbited (went around) the Earth for three months. [2] It carried a radio transmitter. It …

On Oct. 4, 1957, the Soviet Union stunned the world with its surprise launch of Sputnik 1. See how the historic satellite launch worked in this SPACE.com infographic.

Sputnik 1, the world’s first artificial satellite, heralded the dawn of the space age when it was launched by the Soviet Union on October 4, 1957. With its successful deployment into Earth’s orbit, Sputnik 1 marked a significant milestone in human history, sparking the space race between the United States and the Soviet Union and ...