Video: Launch of world's 1st artificial satellite Sputnik I
A one-minute video shows the launch of the world's first artificial satellite, Sputnik I, which took place on October 4, 1957. Launched by the Soviet Union, the satellite was 58 cm in diameter, weighed 83.6 kg, and took around 98 minutes to orbit the Earth. Notably, the satellite's launch marks the start of the Space Age.