USA HISTORY

Detailed explanation-1: -The world’s first artificial satellite, Sputnik 1, was launched by the Soviet Union in 1957, marking the start of the space race.

Detailed explanation-2: -Artificial satellites can be either unmanned (robotic) or manned. The first artificial satellite to be placed in orbit was the unmanned Sputnik 1, launched October 4, 1957, by the Soviet Union. Since then, thousands have been sent into Earth orbit.

Detailed explanation-3: -The satellite’s unanticipated success precipitated the American Sputnik crisis and triggered the Space Race, part of the Cold War. The launch was the beginning of a new era of political, military, technological and scientific developments.