TASS announcement of Sputnik launch. The photograph shows a TASS announcement (the official Soviet news agency) regarding the historic launch of Sputnik 1 on October 4, 1957, during the International Geophysical Year.

Headline and text: The announcement proudly proclaims the successful launch of the first artificial Earth satellite, a world sensation and a milestone in space exploration.

Reference to the Geophysical Year: 1957/58 was designated as the International Geophysical Year (IGY) by scientists worldwide for research into the Earth and space — the Soviet Union seized this occasion for its groundbreaking satellite launch.

Propagandistic impact: The TASS announcement underscores the scientific progress of the USSR and demonstrates to the world the technological superiority of Soviet space exploration.

This announcement triggered the Sputnik shock and marked the beginning of the space race between the Soviet Union and the United States.