Sputnik -

Launched on October 4, 1957, by the Soviet Union, Sputnik 1 triggered the Space Race.

: It was a 58 cm polished metal sphere with four external antennas. Its primary mission was to test the placement of a satellite into orbit and measure atmospheric density. Sputnik

: It broadcasted a distinctive radio signal at 20 MHz and 40 MHz that was picked up by amateur radio operators worldwide. Launched on October 4, 1957, by the Soviet

An international multimedia news platform established by the Russian government. SPUTNIK - Rossiya Segodnya : It broadcasted a distinctive radio signal at

: Its success led to the creation of NASA in 1958 and the launch of the first American satellite, Explorer I .

: It completed 1,440 orbits over three months before burning up in the atmosphere on January 4, 1958. 2. Sputnik News Agency