Sputnik 1 was the first artificial satellite ever launched into Earth's orbit, marking the dawn of the Space Age. Developed by the Soviet Union, it was sent on October 4, 1957, as part of the broader Soviet space program. The satellite was a simple yet groundbreaking spherical design, measuring 58 centimeters (23 inches) in diameter and equipped with four long antennas that transmitted radio pulses back to Earth.

The launch of this probe sent shockwaves around the world, especially in the United States, as it demonstrated the Soviet Union's technological capabilities and intensified the Cold War Space Race. It remained in orbit for 21 days, continuously sending signals that were detected by radio operators worldwide before its batteries ran out.

Sputnik’s impact was profound, directly leading to the creation of NASA and accelerating space exploration efforts globally. After Sputnik 1, the USSR continued to launch other spacecraft in the series, including Sputnik 2, which carried the dog Laika, the first living being to orbit…